Chicago, IL

9:47 AM CDT on May 21, 2013 (GMT -0500)
Elev: 594 ft
Lon: 87.6° W
Lat: 41.8° N
Source
Rapid Fire Updates™
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News
May 21, 2013
Obama has declared a major disaster in Oklahoma, ordering federal aid to supplement state and local recovery efforts. The president also spoke Monday with Oklahoma Gov. Mary Fallin and Rep. Tom Cole, whose home is in the heavily damaged town of Moore.
May 21, 2013
The search and rescue efforts are ongoing in Moore, Okla. after a massive tornado levelled the town and local schools.
May 21, 2013
Check out this comprehensive timeline of the events that transpired in Moore, Okla.
May 21, 2013
A desperate search was underway by parents looking to find children after the massive tornado.
May 21, 2013
Officials say a tornado hit a small hospital in suburban Oklahoma City, but all the 30 patients inside survived.
May 21, 2013
Glenn Lewis was the mayor of Moore, Okla., when the strongest tornado on record whipped the city in 1999, and he says the most recent storm won't deter the community from rebuilding.
May 21, 2013
Tornado survivor is interrupted in the middle of interview by little dog digging out of rubble
May 21, 2013
There are several agencies asking for donations to help those hit hard by the Oklahoma tornadoes.
May 21, 2013
More than a dozen children are dead in the devastating Moore, Okla. tornado.
May 21, 2013
Twitter responds to the devastation brought by tornadoes Monday in suburban Oklahoma City, offering condolences and prayers for the victims and survivors.
May 21, 2013
Our reporters were among the first national media to report from Moore, Okla. shortly after a powerful tornado decimated the town. These are their thoughts as they report from the scene.
May 21, 2013
A photographer who was among the first to arrive at an Oklahoma Elementary School after a tornado destroyed it, describes the heart-wrenching scene.
May 21, 2013
Moore, Oklahoma is no stranger to devastating tornadoes.
May 21, 2013
President Barack Obama has declared a major disaster in Oklahoma as the state recovers from a massive tornado that ripped through the Oklahoma City suburbs Monday, killing dozens and flattening entire neighborhoods.
May 20, 2013
Catastrophic tornadoes developed in Oklahoma on Monday. Here are photos and social media reports.
May 20, 2013
The moon has a new hole on its surface thanks to a boulder that slammed into it in March, creating the biggest explosion scientists have seen on the moon since they started monitoring it.
May 20, 2013
Chinese authorities say rainstorms that battered southern China this week have killed 55 people and left 14 others missing.
May 20, 2013
A tornado outbreak struck the Plains states on May 19, 2013, leaving widespread damage in its wake.
May 20, 2013
The weather imagery, video and recap from tornadoes in the Plains on May 19, 2013.
May 20, 2013
These stunning images of nature captured across the globe will change the way you view our world.
Weather Summary
Weather Underground Forecast for Tuesday, May 21, 2013.

After a devastating severe weather day in the Plains on Monday, severe weather is expected to fire up again across the nation's mid-section again on Tuesday.

The nearly stationary low over the Northern Plains will gradually weaken as it shifts eastward into the Midwest on Tuesday, while the system's associated cold front trails southwestward from the low across the Mid-Mississippi Valley through the Southern Plains. Favorable energy and conditions ahead of the cold front combined with the moisture laden conditions of the nation's mid-section will set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of northeastern Texas, extreme southeastern Oklahoma, central and southern Arkansas, and northwestern Louisiana are at moderate risk of severe thunderstorm activity as environmental conditions remain favorable for tornadoes, damaging wind gusts, and very large hail. Areas surrounding this moderate risk region from the parts of central and eastern Texas into the Upper Great Lakes are at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes.

Meanwhile, areas of heavy rain and widely scattered showers will continue near the low in the Northern Plains and Upper Mississippi Valley and near and to the north of a nearly stationary frontal boundary extending out ahead of the system from the Great Lakes into the Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest will maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms are expected to persist in the Mid-Atlantic and southeastern corner of the nation.
Weather Underground Forecast for Tuesday, May 21, 2013.

After a devastating severe weather day in the Plains on Monday, severe weather is expected to fire up again across the nation's mid-section again on Tuesday.

The nearly stationary low over the Northern Plains will gradually weaken as it shifts eastward into the Midwest on Tuesday, while the system's associated cold front trails southwestward from the low across the Mid-Mississippi Valley through the Southern Plains. Favorable energy and conditions ahead of the cold front combined with the moisture laden conditions of the nation's mid-section will set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of northeastern Texas, extreme southeastern Oklahoma, central and southern Arkansas, and northwestern Louisiana are at moderate risk of severe thunderstorm activity as environmental conditions remain favorable for tornadoes, damaging wind gusts, and very large hail. Areas surrounding this moderate risk region from the parts of central and eastern Texas into the Upper Great Lakes are at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes.

Meanwhile, areas of heavy rain and widely scattered showers will continue near the low in the Northern Plains and Upper Mississippi Valley and near and to the north of a nearly stationary frontal boundary extending out ahead of the system from the Great Lakes into the Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest will maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms are expected to persist in the Mid-Atlantic and southeastern corner of the nation.

Chicago Weather at a Glance

Updated 9:47 AM CDT
Elevation
594 ft
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Now
Mostly Cloudy
Mostly Cloudy
Temperature
73.9 °F
Feels Like 76 °F
Wind(mph)
4.0
Sunrise / Set
5:24 AM
8:09 PM
Moon
Waxing Gibbous
Today
Thunderstorm 86 °F
T-storms
40% chance of precipitation
Tonight
Thunderstorm 64 °F
T-storms
70% chance of precipitation
Tomorrow
Thunderstorm 72 | 52 °F
T-storms
60% chance of precipitation
Thursday
Chance of Rain 61 | 46 °F
Chance of Rain
40% chance of precipitation
Friday
Partly Cloudy 61 | 45 °F
Partly Cloudy
Saturday
Mostly Cloudy 63 | 52 °F
Mostly Cloudy
Today is forecast to be Cooler than yesterday.
Conditions
Pressure
29.72 in
Visibility
10.0 miles
Clouds
Mostly Cloudy 2200 ft
Mostly Cloudy 22000 ft
Moisture
Humidity
68%
Rainfall
0.33 in
Snow Depth
Not available.
METAR
SPECI KMDW 211442Z 21015KT 10SM BKN022 BKN220 22/16 A2972 RMK AO2
Don't speak METAR? Read our FAQ.
Weather Radio
Temperature
Heat Index
76 °F
Dew Point
63 °F
Wind
Speed / Dir
4.0 mph from SSE
Wind Gust
12.1 mph
Health
3 out of 16
Pollen
4.40 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Good
Flu Activity
Sporadic
View Flu Map
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Source: BestForecast
Descriptive Forecast
Tuesday
tstorms Partly cloudy with thunderstorms, then a chance of a thunderstorm and a chance of rain in the afternoon. High of 86F. Breezy. Winds from the SSW at 15 to 20 mph. Chance of rain 40%.
Tuesday Night
nt_tstorms Overcast with a chance of a thunderstorm and a chance of rain, then thunderstorms and rain showers after midnight. Low of 64F. Winds from the SW at 5 to 15 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.
Wednesday
tstorms Overcast with thunderstorms and rain showers, then a chance of a thunderstorm and a chance of rain in the afternoon. High of 72F. Winds less than 5 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.
Wednesday Night
nt_rain Overcast with rain showers. Low of 52F. Winds from the NNW at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.
Thursday
chancerain Overcast with a chance of rain. High of 61F. Windy. Winds from the North at 15 to 25 mph with gusts to 35 mph. Chance of rain 40%.
Thursday Night
nt_clear Partly cloudy in the evening, then clear. Low of 46F. Breezy. Winds from the North at 15 to 20 mph.
Friday
partlycloudy Partly cloudy in the morning, then clear. High of 61F. Winds from the NNE at 10 to 15 mph.
Friday Night
nt_mostlycloudy Overcast. Low of 45F. Winds less than 5 mph.
Saturday
mostlycloudy Mostly cloudy in the morning, then overcast. High of 63F. Winds less than 5 mph.
Saturday Night
nt_mostlycloudy Mostly cloudy. Low of 52F. Winds from the ESE at 5 to 10 mph.
Sunday
mostlycloudy Mostly cloudy with a chance of rain. High of 64F. Winds from the SE at 5 to 15 mph. Chance of rain 20%.
Sunday Night
nt_chancerain Partly cloudy with a chance of rain. Low of 54F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.
Monday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 70F. Winds from the SE at 10 to 15 mph. Chance of rain 50%.
Monday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 54F. Winds from the SE at 10 to 15 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.
Tuesday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 79F. Winds from the South at 10 to 15 mph. Chance of rain 30%.
Tuesday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Low of 64F. Winds from the South at 10 to 15 mph. Chance of rain 20%.
Wednesday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 82F. Winds from the SSW at 10 to 15 mph. Chance of rain 40%.
Wednesday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 66F. Winds from the South at 5 to 10 mph.
Thursday
mostlycloudy Partly cloudy. High of 84F. Winds from the SSW at 5 to 10 mph.
Thursday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 72F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.
Friday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 82F. Winds from the SSW at 5 to 10 mph. Chance of rain 50%.
Friday Night
nt_partlycloudy Clear. Fog overnight. Low of 72F. Winds from the South at 5 to 10 mph.
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Weather Forecast for Chicago IL

View Calendar 10-Day Forecast for station KILCHICA30

Tuesday, 21
Thunderstorm
86 | 64 °F
T-storms
Chance of
Precipitation
40%
Wednesday, 22
Thunderstorm
72 | 52 °F
T-storms
Chance of
Precipitation
60%
Thursday, 23
Chance of Rain
61 | 46 °F
Chance of Rain
Chance of
Precipitation
40%
Friday, 24
Partly Cloudy
61 | 45 °F
Partly Cloudy
Chance of
Precipitation
0%
Saturday, 25
Mostly Cloudy
63 | 52 °F
Mostly Cloudy
Chance of
Precipitation
0%
Sunday, 26
Chance of Rain
64 | 54 °F
Chance of Rain
Chance of
Precipitation
20%
Monday, 27
Chance of a Thunderstorm
70 | 54 °F
Chance of T-storms
Chance of
Precipitation
50%
Tuesday, 28
Chance of a Thunderstorm
79 | 64 °F
Chance of T-storms
Chance of
Precipitation
30%
Wednesday, 29
Chance of a Thunderstorm
82 | 66 °F
Chance of T-storms
Chance of
Precipitation
40%
Thursday, 30
Mostly Cloudy
84 | 72 °F
Mostly Cloudy
Chance of
Precipitation
0%
Source: BestForecast at 8:38 AM CDT on May 21, 2013
Descriptive Forecast
Tuesday
tstorms Partly cloudy with thunderstorms, then a chance of a thunderstorm and a chance of rain in the afternoon. High of 86F. Breezy. Winds from the SSW at 15 to 20 mph. Chance of rain 40%.
Tuesday Night
nt_tstorms Overcast with a chance of a thunderstorm and a chance of rain, then thunderstorms and rain showers after midnight. Low of 64F. Winds from the SW at 5 to 15 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 79 | 63 77 | 61 75 | 59 70 | 59
Wind 12 mph South 16 mph SSW 13 mph SW 5 mph SW
Humidity 55% 55% 56% 69%
Chance of Precip. 90% 40% 40% 60%
Cloud Cover 83% 69% 56% 71%
Conditions Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:24 AM
8:09 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.66], Average RMSE [2.34]
The National Weather Service forecast quality is fair. MaxT RMSE [2.87], Average RMSE [1.56] : Use NWS
Source: BestForecast at 8:38 AM CDT on May 21, 2013
Descriptive Forecast
Wednesday
tstorms Overcast with thunderstorms and rain showers, then a chance of a thunderstorm and a chance of rain in the afternoon. High of 72F. Winds less than 5 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.
Wednesday Night
nt_rain Overcast with rain showers. Low of 52F. Winds from the NNW at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 67 | 59 69 | 58 63 | 54 58 | 51
Wind 3 mph South 3 mph SSW 5 mph NW 7 mph North
Humidity 74% 69% 73% 77%
Chance of Precip. 70% 60% 60% 60%
Cloud Cover 91% 89% 82% 85%
Conditions Thunderstorm Thunderstorm Chance of a Thunderstorm Rain Showers
Sunrise & Sunset
5:24 AM
8:10 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.38], Average RMSE [3.95]
The National Weather Service forecast quality is fair. MaxT RMSE [3.43], Average RMSE [3.07] : Use NWS
Source: BestForecast at 8:38 AM CDT on May 21, 2013
Descriptive Forecast
Thursday
chancerain Overcast with a chance of rain. High of 61F. Windy. Winds from the North at 15 to 25 mph with gusts to 35 mph. Chance of rain 40%.
Thursday Night
nt_clear Partly cloudy in the evening, then clear. Low of 46F. Breezy. Winds from the North at 15 to 20 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 49 50 | 47 50 | 47 46 | 36
Wind 12 mph NNW 22 mph North 19 mph North 15 mph North
Humidity 77% 91% 86% 66%
Chance of Precip. 60% 50% 40% 10%
Cloud Cover 93% 85% 51% 0%
Conditions Rain Showers Chance of Rain Chance of Rain Clear
Sunrise & Sunset
5:23 AM
8:11 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.62], Average RMSE [3.71]
The National Weather Service forecast quality is poor. MaxT RMSE [3.72], Average RMSE [3.27] : Use NWS
Source: BestForecast at 8:38 AM CDT on May 21, 2013
Descriptive Forecast
Friday
partlycloudy Partly cloudy in the morning, then clear. High of 61F. Winds from the NNE at 10 to 15 mph.
Friday Night
nt_mostlycloudy Overcast. Low of 45F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 51 | 37 58 | 39 54 | 37 49 | 30
Wind 12 mph North 10 mph North 6 mph NE 3 mph ENE
Humidity 59% 47% 54% 49%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 63% 0% 100%
Conditions Clear Partly Cloudy Clear Overcast
Sunrise & Sunset
5:22 AM
8:12 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.97], Average RMSE [2.86]
The National Weather Service forecast quality is poor. MaxT RMSE [3.77], Average RMSE [3.71] : Use NWS
Source: BestForecast at 8:38 AM CDT on May 21, 2013
Descriptive Forecast
Saturday
mostlycloudy Mostly cloudy in the morning, then overcast. High of 63F. Winds less than 5 mph.
Saturday Night
nt_mostlycloudy Mostly cloudy. Low of 52F. Winds from the ESE at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 50 | 32 59 | 40 60 | 43 54 | 43
Wind 3 mph NE 3 mph SSW 4 mph SSE 6 mph ESE
Humidity 52% 47% 50% 65%
Chance of Precip. 0% 10% 10% 10%
Cloud Cover 90% 78% 98% 94%
Conditions Overcast Mostly Cloudy Overcast Overcast
Sunrise & Sunset
5:21 AM
8:13 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.34], Average RMSE [4.00]
The National Weather Service forecast quality is poor. MaxT RMSE [4.33], Average RMSE [4.46] : Use NWS
Source: BestForecast at 8:38 AM CDT on May 21, 2013
Descriptive Forecast
Sunday
mostlycloudy Mostly cloudy with a chance of rain. High of 64F. Winds from the SE at 5 to 15 mph. Chance of rain 20%.
Sunday Night
nt_chancerain Partly cloudy with a chance of rain. Low of 54F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 46 64 | 49 63 | 51 55 | 52
Wind 8 mph ESE 9 mph SE 8 mph SSE 8 mph SE
Humidity 70% 58% 63% 86%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 63% 100% 36% 98%
Conditions Partly Cloudy Overcast Partly Cloudy Overcast
Sunrise & Sunset
5:21 AM
8:14 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.44], Average RMSE [4.72]
The National Weather Service forecast quality is poor. MaxT RMSE [4.94], Average RMSE [4.64] : Use NWS
Source: BestForecast at 8:38 AM CDT on May 21, 2013
Descriptive Forecast
Monday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 70F. Winds from the SE at 10 to 15 mph. Chance of rain 50%.
Monday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 54F. Winds from the SE at 10 to 15 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 60 | 52 67 | 53 67 | 55 57 | 54
Wind 11 mph SE 12 mph SE 11 mph ESE 11 mph SE
Humidity 71% 59% 67% 91%
Chance of Precip. 20% 20% 30% 30%
Cloud Cover 30% 96% 100% 40%
Conditions Chance of Rain Chance of Rain Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:20 AM
8:15 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.25], Average RMSE [4.22]
The National Weather Service forecast quality is poor. MaxT RMSE [6.10], Average RMSE [4.91] : Use NWS
Source: BestForecast at 8:38 AM CDT on May 21, 2013
Descriptive Forecast
Tuesday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 79F. Winds from the South at 10 to 15 mph. Chance of rain 30%.
Tuesday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Low of 64F. Winds from the South at 10 to 15 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 67 | 55 73 | 62 73 | 64 67 | 63
Wind 10 mph SE 12 mph SSE 11 mph SSW 10 mph South
Humidity 64% 65% 73% 84%
Chance of Precip. 30% 10% 10% 0%
Cloud Cover 70% 99% 90% 74%
Conditions Chance of a Thunderstorm Overcast Overcast Mostly Cloudy
Sunrise & Sunset
5:20 AM
8:15 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [7.02], Average RMSE [7.00]
Source: BestForecast at 8:38 AM CDT on May 21, 2013
Descriptive Forecast
Wednesday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 82F. Winds from the SSW at 10 to 15 mph. Chance of rain 40%.
Wednesday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 66F. Winds from the South at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 69 | 62 74 | 64 71 | 67 69 | 65
Wind 9 mph South 10 mph SSW 8 mph SSW 9 mph South
Humidity 74% 68% 91% 86%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 62% 57% 59% 60%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Fog
Sunrise & Sunset
5:19 AM
8:16 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [7.19], Average RMSE [6.34]
Source: BestForecast at 8:38 AM CDT on May 21, 2013
Descriptive Forecast
Thursday
mostlycloudy Partly cloudy. High of 84F. Winds from the SSW at 5 to 10 mph.
Thursday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 72F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 72 | 62 76 | 64 71 | 67 71 | 65
Wind 8 mph South 10 mph SSW 8 mph SSW 8 mph SSW
Humidity 69% 64% 86% 83%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 60% 64% 71% 75%
Conditions Partly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy
Sunrise & Sunset
5:18 AM
8:17 PM
Source: BestForecast at 8:38 AM CDT on May 21, 2013
Descriptive Forecast
Friday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 82F. Winds from the SSW at 5 to 10 mph. Chance of rain 50%.
Friday Night
nt_partlycloudy Clear. Fog overnight. Low of 72F. Winds from the South at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 73 | 63 75 | 65 69 | 67 70 | 68
Wind 7 mph SSW 8 mph SSW 5 mph SSW 6 mph South
Humidity 71% 69% 95% 95%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 77% 78% 80% %
Conditions Mostly Cloudy Mostly Cloudy Mostly Cloudy Fog
Sunrise & Sunset
Sun does not rise
Nearby
History & Almanac
May 21, 2013 Max Temp Min Temp
Normal (KMDW) 72 °F 53 °F
Record (KMDW) 94 °F (1934) 34 °F (2002)
Yesterday 92 °F 65 °F
Yesterday's Cooling Degree Days: 14
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Moderate
OZONE
Yesterday Moderate
PM2.5
Current Good
PM2.5
Current Good
OZONE
Tuesday Moderate
PM2.5
Coastal Water Temperatures
Place Temperature
No Stations Reporting
Astronomy
May. 21, 2013 Rise Set
Actual Time 5:24 AM CDT 8:09 PM CDT
Civil Twilight 4:52 AM CDT 8:42 PM CDT
Nautical Twilight 4:11 AM CDT 9:23 PM CDT
Astronomical Twilight 3:25 AM CDT 10:10 PM CDT
Moon 4:20 PM CDT 2:56 AM CDT
Length Of Visible Light 15h 49m
Length of Day
14h 44m
Tomorrow will be 1m 44s longer.
Waxing Gibbous, 83% of the Moon is Illuminated
Today
Waxing Gibbous
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Today's Extremes
State Highs State Lows
79 °F
Cairo
78 °F
Harrisburg
78 °F
Danville
78 °F
Robinson
78 °F
Mount Carmel
60 °F
Savanna
60 °F
Galesburg
60 °F
Taylorville
61 °F
Litchfield
61 °F
Bloomington
Snow Depth
Station Depth Elevation
No new snow has been reported.
WunderPhotos®
Mount Timpanogos
Poor Baby
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1,613,587 photos uploaded!
WunderBlogs®
Stormy Monday?
By juslivn 58 minutes ago
Travel & Activities
Travel Planning
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Aviation
City Temp. Conditions Updated
Chicago Midway 72 °F Mostly Cloudy 9:42 AM CDT
Gary 70 °F Mostly Cloudy 8:45 AM CDT
Chicago Lansing 71 °F Overcast 9:35 AM CDT
Chicago 70 °F Mostly Cloudy 8:51 AM CDT
Flight To ETA Status
SWA939
St Louis, MO
KMDW 09:34AM On Time
TRS537
Tampa, FL
KMDW 09:34AM On Time
SWA1638
Tampa, FL
KMDW 09:38AM On Time
SWA284
Houston, TX
KMDW 09:50AM On Time
SKW6459
Peoria, IL
KORD 09:37AM On Time
GJS3661
Madison, WI
KORD 09:39AM On Time
DAL652
Atlanta, GA
KORD 09:39AM On Time
UAL1277
Minneapolis, MN
KORD 09:40AM On Time
Flight Tracker by FlightAware FlightAware
Type Condition
Flight Rule: MVFR (KMDW)
Wind Speed: 15.0 kts.
Wind Dir: 168° (SSE)
Ceiling: 2200 ft

SPECI KMDW 211442Z 21015KT 10SM BKN022 BKN220 22/16 A2972 RMK AO2

Nearby Events
Event Date Forecast
James Barrie's Quartets 7:00 PM CDT
2013-04-15
Chance of a Thunderstorm, 52°F
The Book of Mormon (Chicago) 7:00 PM CDT
2013-04-16
Chance of Rain, 41°F
Big Fish (Chicago) 7:00 PM CDT
2013-04-16
Chance of Rain, 41°F
Green Day's American Idiot (Chicago) 7:00 PM CDT
2013-04-16
Chance of Rain, 41°F
The Book of Mormon (Chicago) 7:00 PM CDT
2013-04-17
Thunderstorm, 55°F
Big Fish (Chicago) 7:00 PM CDT
2013-04-17
Thunderstorm, 55°F
Event data courtesy eviesays.com
Videos
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Watch the nearly year-long satellite animation as Weather Underground calls out the most significant weather events of the past year, including Superstorm Sandy and Hurricane Isaac.

Weather Stations
Station Location Temp. Heat Index Dew Point Humidity Wind Precipitation Elevation Updated Type Website
U.S. Cellular Field, Chicago, IL 73.9 °F 76 °F 63 °F 68% SSE  at  4.0 mph 0.00 in / hr 594 ft 9:47 AM CDT Rapid Fire
West Loop, Chicago, IL 72.1 °F 74 °F 63 °F 73% East  at  3.0 mph 0.00 in / hr 645 ft 9:47 AM CDT Normal  
Midway Airport SE corner runway 13C 12/0, Chicago, IL 73.2 °F 76 °F 60 °F 63% SSW  at  8.0 mph 0.00 in / hr 620 ft 9:46 AM CDT Normal
Morgan Park, Chicago, IL 71.9 °F 73 °F 64 °F 77% SSE  at  6.0 mph 0.00 in / hr 616 ft 9:46 AM CDT Normal  
Chicago, IL 71.2 °F 73 °F 64 °F 77% ESE  at  1.0 mph - / hr 0 ft 9:47 AM CDT Normal  
APRSWXNET Oak Lawn IL, Chicago, IL 71 °F 72 °F 63 °F 77% SSW  at  3 mph 0.00 in / hr 620 ft 9:31 AM CDT MADIS
George Rogers Clark High School, Whiting, IN 70.3 °F 73 °F 61 °F 74% ESE  at  21.6 mph 0.00 in / hr 591 ft 9:47 AM CDT Rapid Fire  
HADS ILLINOIS RIVER LOCK & DAM AT OBRIEN, Chicago, IL 71 °F - - - South  at  8 mph 0.00 in / hr 574 ft 9:00 AM CDT MADIS
KA9UMG 91th and Mobile, Oak Lawn, IL 74.0 °F 76 °F 64 °F 71% SSW  at  3.4 mph 0.00 in / hr 627 ft 9:47 AM CDT Rapid Fire
Stickney, IL, Stickney, IL 71.0 °F 73 °F 62 °F 75% SSW  at  4.0 mph 0.00 in / hr 614 ft 9:46 AM CDT Rapid Fire  
Bucktown, Chicago, IL 72.2 °F 74 °F 64 °F 74% WSW  at  4.9 mph 0.00 in / hr 600 ft 9:47 AM CDT Rapid Fire  
Lincoln Park, Chicago, IL 71.0 °F 75 °F 43 °F 22% South  at  23.0 mph - / hr 595 ft 9:47 AM CDT Normal  
DePaul Geography, Chicago, IL 72.3 °F 72 °F 67 °F 83% SSW  at  0.0 mph 0.00 in / hr 650 ft 9:43 AM CDT Rapid Fire
Chicago Ridge Emergency Operations Cente, Chicago Ridge, IL 71.4 °F 73 °F 64 °F 76% ESE  at  8.0 mph 0.00 in / hr 600 ft 9:47 AM CDT Rapid Fire
South Lakeview, Chicago, IL 72.3 °F 75 °F 61 °F 68% WSW  at  12.0 mph 0.00 in / hr 607 ft 9:47 AM CDT Rapid Fire  
West Lakeview, Chicago, IL 71.4 °F 73 °F 63 °F 75% West  at  14.0 mph 0.00 in / hr 636 ft 9:36 AM CDT Normal
Oak Park, IL, Oak Park, IL 73.7 °F 75 °F 64 °F 73% South  at  8.0 mph 0.00 in / hr 617 ft 9:47 AM CDT Rapid Fire
Lyons Police Department, Lyons, IL 71.2 °F 72 °F 65 °F 80% South  at  6.0 mph 0.01 in / hr 615 ft 9:47 AM CDT Rapid Fire
Bishop Noll Institute, Hammond, IN 71.6 °F 74 °F 62 °F 72% NNE  at  18.3 mph 0.00 in / hr 604 ft 9:47 AM CDT Rapid Fire  
Wrigleyville, Chicago, IL 72.0 °F 75 °F 61 °F 69% South  at  10.0 mph 0.00 in / hr 630 ft 9:47 AM CDT Rapid Fire
JobLink in Indiana Harbor, East Chicago, IN 71.8 °F 73 °F 64 °F 76% SSW  at  9.0 mph 0.00 in / hr 601 ft 9:47 AM CDT Rapid Fire
137th and Cicero Av., Crestwood, IL 70.6 °F 73 °F 62 °F 74% SW  at  1.0 mph 0.00 in / hr 623 ft 9:47 AM CDT Rapid Fire
Lyons Illinois Weather, Lyons, IL 73.4 °F 74 °F 66 °F 79% SW  at  5.0 mph 0.00 in / hr 620 ft 9:45 AM CDT Normal  
APRSWXNET Hickory Hills IL , Hickory Hills, IL 71 °F 71 °F 65 °F 82% SW  at  7 mph 0.00 in / hr 702 ft 9:34 AM CDT MADIS
Brookfield, IL 72.3 °F 73 °F 65 °F 77% North  at  2.0 mph 0.00 in / hr 659 ft 9:45 AM CDT Normal
KC9HZC, Brookfield, IL 77.4 °F 79 °F 67 °F 71% South  at  2.2 mph 0.00 in / hr 617 ft 9:47 AM CDT Rapid Fire  
Palos Hills, Palos Hills, IL 70.7 °F 71 °F 64 °F 80% SW  at  6.0 mph 0.00 in / hr 712 ft 9:47 AM CDT Normal
Lincoln Square, CHICAGO, IL 74.7 °F 77 °F 64 °F 69% South  at  4.5 mph 0.00 in / hr 607 ft 9:47 AM CDT Rapid Fire  
Irving Park, Chicago, IL 72.6 °F 74 °F 64 °F 75% SW  at  2.0 mph 0.00 in / hr 600 ft 9:47 AM CDT Rapid Fire  
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Local Storm Report


05/20/2013 1125 PM

Park Forest, Cook County.

Thunderstorm wind gust e56.00 mph, reported by trained spotter.


            Near Orchard Avenue.




05/20/2013 1140 PM

1 miles SSW of Oak Lawn, Cook County.

Heavy rain m1.04 inch, reported by cocorahs.


            Rain in 40 minutes up to time of report. Max wind gust 41
            mph.




05/20/2013 1159 PM

Cicero, Cook County.

Flash flood, reported by public.


            High-standing water on I-55 south at Pulaski Road.
            Relayed through media.




05/20/2013 1115 PM

Lemont, Cook County.

Heavy rain m0.88 inch, reported by trained spotter.


            Rain in 35 minutes at 127th and Interstate 355.




05/20/2013 1117 PM

1 miles SW of Glenview, Cook County.

Heavy rain m0.88 inch, reported by cocorahs.


            0.87 inches in 30 minutes up to time of report.




05/20/2013 1120 PM

Tinley Park, Cook County.

Heavy rain m0.77 inch, reported by public.


            Rainfall in 15 minutes. Facebook report.




05/20/2013 1125 PM

Park Forest, Cook County.

Thunderstorm wind gust e56.00 mph, reported by trained spotter.


            Near Orchard Avenue.




05/20/2013 1140 PM

1 miles SSW of Oak Lawn, Cook County.

Heavy rain m1.04 inch, reported by cocorahs.


            Rain in 40 minutes up to time of report. Max wind gust 41
            mph.




05/20/2013 1159 PM

Cicero, Cook County.

Flash flood, reported by public.


            High-standing water on I-55 south at Pulaski Road.
            Relayed through media.





05/20/2013 1115 PM

Lemont, Cook County.

Heavy rain m0.88 inch, reported by trained spotter.


            Rain in 35 minutes at 127th and Interstate 355.




05/20/2013 1117 PM

1 miles SW of Glenview, Cook County.

Heavy rain m0.88 inch, reported by cocorahs.


            0.87 inches in 30 minutes up to time of report.




05/20/2013 1120 PM

Tinley Park, Cook County.

Heavy rain m0.77 inch, reported by public.


            Rainfall in 15 minutes. Facebook report.




05/20/2013 1125 PM

Park Forest, Cook County.

Thunderstorm wind gust e56.00 mph, reported by trained spotter.


            Near Orchard Avenue.




05/20/2013 1140 PM

1 miles SSW of Oak Lawn, Cook County.

Heavy rain m1.04 inch, reported by cocorahs.


            Rain in 40 minutes up to time of report. Max wind gust 41
            mph.




05/20/2013 1159 PM

Cicero, Cook County.

Flash flood, reported by public.


            High-standing water on I-55 south at Pulaski Road.
            Relayed through media.





05/20/2013 1115 PM

Lemont, Cook County.

Heavy rain m0.88 inch, reported by trained spotter.


            Rain in 35 minutes at 127th and Interstate 355.




05/20/2013 1117 PM

1 miles SW of Glenview, Cook County.

Heavy rain m0.88 inch, reported by cocorahs.


            0.87 inches in 30 minutes up to time of report.




05/20/2013 1120 PM

Tinley Park, Cook County.

Heavy rain m0.77 inch, reported by public.


            Rainfall in 15 minutes. Facebook report.




05/20/2013 1159 PM

Cicero, Cook County.

Flash flood, reported by public.


            High-standing water on I-55 south at Pulaski Road.
            Relayed through media.





05/20/2013 1159 PM

Cicero, Cook County.

Flash flood, reported by public.


            High-standing water on I-55 south at Pulaski Road.
            Relayed through media.





05/20/2013 1117 PM

1 miles SW of Glenview, Cook County.

Heavy rain m0.88 inch, reported by cocorahs.


            0.87 inches in 30 minutes up to time of report.




05/20/2013 1120 PM

Tinley Park, Cook County.

Heavy rain m0.77 inch, reported by public.


            Rainfall in 15 minutes. Facebook report.




05/20/2013 1125 PM

Park Forest, Cook County.

Thunderstorm wind gust e56.00 mph, reported by trained spotter.


            Near Orchard Avenue.




05/20/2013 1140 PM

1 miles SSW of Oak Lawn, Cook County.

Heavy rain m1.04 inch, reported by cocorahs.


            Rain in 40 minutes up to time of report. Max wind gust 41
            mph.




05/20/2013 1115 PM

Lemont, Cook County.

Heavy rain m0.88 inch, reported by trained spotter.


            Rain in 35 minutes at 127th and Interstate 355.




05/20/2013 1117 PM

1 miles SW of Glenview, Cook County.

Heavy rain m0.88 inch, reported by cocorahs.


            0.87 inches in 30 minutes up to time of report.




05/20/2013 1120 PM

Tinley Park, Cook County.

Heavy rain m0.77 inch, reported by public.


            Rainfall in 15 minutes. Facebook report.




05/20/2013 1125 PM

Park Forest, Cook County.

Thunderstorm wind gust e56.00 mph, reported by trained spotter.


            Near Orchard Avenue.




05/20/2013 1140 PM

1 miles SSW of Oak Lawn, Cook County.

Heavy rain m1.04 inch, reported by cocorahs.


            Rain in 40 minutes up to time of report. Max wind gust 41
            mph.




05/20/2013 1115 PM

Lemont, Cook County.

Heavy rain m0.88 inch, reported by trained spotter.


            Rain in 35 minutes at 127th and Interstate 355.




05/20/2013 1120 PM

Tinley Park, Cook County.

Heavy rain m0.77 inch, reported by public.


            Rainfall in 15 minutes. Facebook report.





05/20/2013 1120 PM

Tinley Park, Cook County.

Heavy rain m0.77 inch, reported by public.


            Rainfall in 15 minutes. Facebook report.





05/20/2013 1140 PM

1 miles SSW of Oak Lawn, Cook County.

Heavy rain m1.04 inch, reported by cocorahs.


            Rain in 40 minutes up to time of report. Max wind gust 41
            mph.





05/20/2013 1117 PM

1 miles SW of Glenview, Cook County.

Heavy rain m0.88 inch, reported by cocorahs.


            0.87 inches in 30 minutes up to time of report.





05/20/2013 1117 PM

1 miles SW of Glenview, Cook County.

Heavy rain m0.88 inch, reported by cocorahs.


            0.87 inches in 30 minutes up to time of report.





05/20/2013 1115 PM

Lemont, Cook County.

Heavy rain m0.88 inch, reported by trained spotter.


            Rain in 35 minutes at 127th and Interstate 355.





05/20/2013 1115 PM

Lemont, Cook County.

Heavy rain m0.88 inch, reported by trained spotter.


            Rain in 35 minutes at 127th and Interstate 355.





05/20/2013 1125 PM

Park Forest, Cook County.

Thunderstorm wind gust e56.00 mph, reported by trained spotter.


            Near Orchard Avenue.



Public Information Statement
Mobile & Email Alerts Statement as of 9:00 am CDT on March 21, 2013

... This is safe boating week...
... Marine forecast...

The following is a safe boating message from the National safe
boating Council and the National Weather Service.

Understanding a marine forecast is critical to safe boating.
Weather and wave conditions can change suddenly... catching boaters
off guard and creating life threatening conditions.

Typical marine forecasts predict wind speed and direction... wave
heights and periods... roughness of near shore waters... and
significant weather. Marine forecasts cover large areas and the
forecast elements are often given in ranges. The significant weather
may not occur over the entire area or during the entire forecast
period. The ranges represent average conditions over a period of
time... usually 12 hours... and the actual conditions may be lower or
higher than the forecast range. Boaters should plan for conditions
above and below the predicted ranges.

Take particular note of any current advisories and
warnings... including small craft advisories... gale or storm warnings
which alert mariners to either high winds or waves occurring now or
forecast to occur up to 24 hours from now. Special marine warnings
are issued for sudden increase in winds to over 35 knots... 40
mph... waterspouts... tornadoes over water... and hail of three
quarters of an inch of greater and indicate a more immediate threat.
Marine weather statements bring attention to significant rapidly
changing conditions on the water including increase in winds... non
severe thunderstorms... development of dense fog and even snow
squalls or strong and gusty rain showers.

You should have a marine vhf transceiver with build in NOAA Weather
Radio channels. If you venture beyond about a 25 nautical mile range
from shore... you should consider buying a good quality hf single
sideband transceiver and satellite phone.

Before setting out... obtain the latest marine forecast and warning
information from www.Weather.Gov/marine or NOAA Weather Radio.
Several days ahead of time you can begin listening for extended
outlooks which give general information out o the next five days in
both graphical and text format.

This message was brought to you by the National Weather Service and
the National safe boating Council. Visit the National Weather
Service on the web at www.Weather.Gov and the National safe boating
Council at www.Safeboatingcouncil.Org.