Boulder, CO

4:01 PM MDT on May 19, 2013 (GMT -0600)
Elev: 5466 ft
Lon: 105.3° W
Lat: 40.0° N
Source
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News
Sunday Tornado Damage in Wichita
May 19, 2013
State emergency officials are monitoring a tornado in the Wichita area.
Real-Time Updates: Severe Weather Outbreak
May 19, 2013
The latest breaking news, tornado warnings, photos and more.
Mice Return From a Month in Space
May 19, 2013
Mice and other critters return from a month long stay in space.
Heavy Rains Cause Flooding in North Georgia
May 19, 2013
Some locations have seen 5 to 6 inches of rainfall.
May Severe Outbreak: Day 1 Recap
May 19, 2013
See the tornado, damaging wind and large hail reports on our interactive map.
Tornado Hunt Captures Multiple Tornadoes in Progress
May 19, 2013
See images and video from the Plains as severe thunderstorms left their mark.
Tornado Warning Drought May End This Weekend
May 19, 2013
Parts of the Plains, Midwest have seen a startling absence of tornadoes.
64, Including Saudi Arabian Woman, Scale Mount Everest
May 18, 2013
More than five dozens climbers successfully scaled Mount Everest.
Flash Flooding Swamps Parts of Alabama
May 19, 2013
The photos, reports, and perspective behind flooding rain in parts of Alabama Saturday.
Active Volcano Captured in Stunning Photos
May 17, 2013
Indonesian-born and Qatar-based photographer Helminadia Ranford captured breathtaking photos of Mt. Bromo, an active volcano in East Java, Indonesia.
NASA: New Pump Resolves Big Space Station Leak
May 17, 2013
A spacewalk has repaired a leak on the International Space Station, NASA said.
Where Winter Won't End
May 18, 2013
Spring warmth has arrived in most of the U.S., except this state.
Storm Damage near Shreveport
May 16, 2013
Storm storms leave damage near Shreveport, Louisiana. See photos and tweets.
Texas Tornadoes: As They Happened
May 18, 2013
We walk through the full timeline of the Texas tornadoes on May 15, 2013.
By Man or Nature, Places That Will Never Be the Same
May 16, 2013
Where Earth has been changed forever.
Smaller Glaciers Boost Sea Level as Much as the Giants
May 16, 2013
Thousands of small glaciers, unconnected to continental-scale ice sheets, have dumped about 260 million tons of meltwater into the ocean annually between 2003 and 2009.
Deadly Texas Outbreak May Mark End of Tornado Drought
May 16, 2013
After months with record-low activity, the 2013 tornado season roared back with a vengeance on Wednesday as at least 10 twisters touched down across portions of north-central Texas, killing at least 6 and injuring dozens more.
Alaska Volcano Shoots Ash 15,000 Feet into Air
May 18, 2013
Steam and ash clouds are occasionally rising to 20,000 feet from an active Alaska volcano.
Mexico Volcano Registers More Seismic Activity
May 16, 2013
Seismic activity is continuing at the Popocatepetl volcano near Mexico City and authorities say they have readied shelters and identified evacuation routes in case they should be needed.
Cyclone Mahasen Weakens After Killing 45 in Bangladesh
May 16, 2013
Cyclone Mahasan weakened Thursday afternoon into a tropical storm and then dissipated, causing far less damage than had been feared as it passed over Bangladesh and spared Myanmar almost entirely, meteorological officials said.
More News Articles
Weather Summary
Kari Kiefer
Weather Underground midday recap for Sunday, May 19, 2013.

Heavy rains and severe thunderstorm activity continued for the Plains on Sunday as a broad low trekked slowly across the Northern Plains. As the system progressed, counter-clockwise flow associated with the system pulled ample moisture and energy northward from the Gulf of Mexico, while an associated cold front reached southward from the system across the Central Plains. Forcing from the cold front combined with a dry line in the Southern Plains and the moisture laden conditions of the region allowed for multiple clusters of thunderstorms to continue from Saturday night through Sunday morning. Portions of eastern Kansas, western Missouri, and central/eastern Oklahoma remained at moderate risk of severe thunderstorm activity through the afternoon and evening as environmental conditions remained favorable for strong tornadoes, damaging wind gusts, and very large hail. Areas surrounding this moderate risk region from the parts of the Southern Plains into the Upper Mississippi Valley were at slight risk of severe thunderstorm development. While hail and damaging winds were the main threats of severe weather in these regions, a few tornadoes were also possible.

Meanwhile, heavy rains continued across the north-central U.S., while moderate to strong instability kicked up scattered thunderstorms and showers in the southeastern corner of the nation. Areas of eastern Montana through eastern Minnesota and parts of western Wisconsin remained under Flash Flood Watches and Warnings through the afternoon due to moderate to heavy rain and areas of rapid runoff. Flash Flood Warnings and various Flood Watches Warnings were also issued for parts of northern Georgia and eastern Alabama as intense rainfall amounts of 2 to 3 inches fell in one hour. In addition to heavy rain totals, hail and damaging wind gusts were possible with stronger storms in the southeastern corner of the nation.

Elsewhere, isolated to scattered showers and areas of thunderstorms developed across portions of the Mid-Atlantic and Northeast as a long warm front associated with this system reached across the Great Lakes into the Mid-Atlantic and humid conditions spread northward.
Weather Underground midday recap for Sunday, May 19, 2013.

Heavy rains and severe thunderstorm activity continued for the Plains on Sunday as a broad low trekked slowly across the Northern Plains. As the system progressed, counter-clockwise flow associated with the system pulled ample moisture and energy northward from the Gulf of Mexico, while an associated cold front reached southward from the system across the Central Plains. Forcing from the cold front combined with a dry line in the Southern Plains and the moisture laden conditions of the region allowed for multiple clusters of thunderstorms to continue from Saturday night through Sunday morning. Portions of eastern Kansas, western Missouri, and central/eastern Oklahoma remained at moderate risk of severe thunderstorm activity through the afternoon and evening as environmental conditions remained favorable for strong tornadoes, damaging wind gusts, and very large hail. Areas surrounding this moderate risk region from the parts of the Southern Plains into the Upper Mississippi Valley were at slight risk of severe thunderstorm development. While hail and damaging winds were the main threats of severe weather in these regions, a few tornadoes were also possible.

Meanwhile, heavy rains continued across the north-central U.S., while moderate to strong instability kicked up scattered thunderstorms and showers in the southeastern corner of the nation. Areas of eastern Montana through eastern Minnesota and parts of western Wisconsin remained under Flash Flood Watches and Warnings through the afternoon due to moderate to heavy rain and areas of rapid runoff. Flash Flood Warnings and various Flood Watches Warnings were also issued for parts of northern Georgia and eastern Alabama as intense rainfall amounts of 2 to 3 inches fell in one hour. In addition to heavy rain totals, hail and damaging wind gusts were possible with stronger storms in the southeastern corner of the nation.

Elsewhere, isolated to scattered showers and areas of thunderstorms developed across portions of the Mid-Atlantic and Northeast as a long warm front associated with this system reached across the Great Lakes into the Mid-Atlantic and humid conditions spread northward.
More News Articles

Boulder Weather at a Glance

Updated 3:45 PM MDT
Elevation
6500 ft
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Now
Mostly Cloudy
Mostly Cloudy
Temperature
62.6 °F
Feels Like 62.6 °F
Wind(mph)
14.0
Sunrise / Set
5:42 AM
8:13 PM
Moon
Waxing Gibbous
Tonight
Mostly Cloudy 45 °F
Mostly Cloudy
20% chance of precipitation
Tomorrow
Chance of a Thunderstorm 70 °F
Chance of T-storms
50% chance of precipitation
Tomorrow Night
Chance of Rain 43 °F
Chance of Rain
40% chance of precipitation
Tuesday
Partly Cloudy 72 | 45 °F
Partly Cloudy
Wednesday
Chance of a Thunderstorm 84 | 46 °F
Chance of a Thunderstorm
20% chance of precipitation
Thursday
Chance of a Thunderstorm 84 | 48 °F
Chance of T-storms
30% chance of precipitation
Tomorrow is forecast to be Cooler than today.
Conditions
Pressure
29.80 in
Visibility
50.0 miles
Clouds
Few 6000 ft
Scattered Clouds 9000 ft
Mostly Cloudy 20000 ft
Moisture
Humidity
11%
Rainfall
0.00 in
Snow Depth
26 in, 47 in, 114 in
METAR
METAR KBJC 192148Z 22008G11KT 50SM FEW060 SCT090TCU BKN200 17/M04 A2980 RMK VIRGA NW-SW
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Temperature
62.6 °F
52,54,54,54,55,57,59,63,64,66,66,66,70
Dew Point
7 °F
Wind
Speed / Dir
14.0 mph from WNW
Wind Gust
30.0 mph
Health
UV
0.0 out of 16
Pollen
8.20 out of 12
Pollen Forecast
Ozone
Moderate
PM2.5
Good
Flu Activity
No Activity
View Flu Map
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Source: BestForecast
Descriptive Forecast
Sunday Night
nt_mostlycloudy Mostly cloudy with rain showers. Low of 45F. Winds from the WNW at 10 to 15 mph. Chance of rain 20%.
Monday
chancetstorms Overcast with a chance of rain, then a chance of a thunderstorm and rain in the afternoon. High of 70F. Winds from the WNW at 5 to 10 mph. Chance of rain 50%.
Monday Night
nt_chancerain Overcast with a chance of rain. Low of 43F. Winds from the NW at 5 to 10 mph. Chance of rain 40%.
Tuesday
partlycloudy Partly cloudy with a chance of a thunderstorm and a chance of rain in the afternoon. High of 72F. Winds from the NW at 5 to 10 mph.
Tuesday Night
nt_clear Partly cloudy in the evening, then clear. Low of 45F. Winds less than 5 mph.
Wednesday
partlycloudy Partly cloudy with a chance of rain in the afternoon. High of 84F. Winds from the North at 5 to 15 mph shifting to the East in the afternoon. Chance of rain 20%.
Wednesday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm and rain in the evening, then clear with a chance of a thunderstorm and rain. Low of 46F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.
Thursday
chancetstorms Clear in the morning, then partly cloudy with a chance of a thunderstorm and rain. High of 84F. Winds from the SE at 5 to 15 mph. Chance of rain 30%.
Thursday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 48F. Winds from the SE at 5 to 15 mph. Chance of rain 30%.
Friday
partlycloudy Clear. High of 93F. Winds from the South at 5 to 10 mph.
Friday Night
nt_clear Clear. Low of 54F. Winds from the WSW at 5 to 10 mph.
Saturday
partlycloudy Partly cloudy. High of 91F. Winds from the WSW at 5 to 15 mph.
Saturday Night
nt_partlycloudy Partly cloudy. Low of 54F. Winds from the West at 5 to 15 mph.
Sunday
mostlycloudy Mostly cloudy. High of 97F. Winds from the South at 5 to 10 mph.
Sunday Night
nt_partlycloudy Partly cloudy. Low of 52F. Winds from the WNW at 5 to 10 mph.
Monday
partlycloudy Partly cloudy. High of 93F. Winds from the South at 5 to 15 mph.
Monday Night
nt_mostlycloudy Mostly cloudy. Low of 54F. Winds less than 5 mph.
Tuesday
partlycloudy Partly cloudy. High of 90F. Winds less than 5 mph.
Tuesday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Low of 52F. Winds less than 5 mph. Chance of rain 20%.
Wednesday
partlycloudy Clear. High of 88F. Winds less than 5 mph.
Wednesday Night
nt_clear Clear. Low of 50F. Winds less than 5 mph.
Thursday
clear Clear. High of 90F. Winds less than 5 mph.
Thursday Night
nt_clear Clear. Low of 50F. Winds from the WNW at 5 to 10 mph.
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Weather Forecast for Boulder CO

View Calendar 10-Day Forecast for station KCOBOULD23

Sunday, 19
Thunderstorm
75 | 45 °F
Thunderstorm
Chance of
Precipitation
20%
Monday, 20
Chance of a Thunderstorm
70 | 43 °F
Chance of T-storms
Chance of
Precipitation
50%
Tuesday, 21
Partly Cloudy
72 | 45 °F
Partly Cloudy
Chance of
Precipitation
10%
Wednesday, 22
Chance of a Thunderstorm
84 | 46 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Thursday, 23
Chance of a Thunderstorm
84 | 48 °F
Chance of T-storms
Chance of
Precipitation
30%
Friday, 24
Partly Cloudy
93 | 54 °F
Partly Cloudy
Chance of
Precipitation
0%
Saturday, 25
Partly Cloudy
91 | 54 °F
Partly Cloudy
Chance of
Precipitation
0%
Sunday, 26
Mostly Cloudy
97 | 52 °F
Mostly Cloudy
Chance of
Precipitation
0%
Monday, 27
Partly Cloudy
93 | 54 °F
Partly Cloudy
Chance of
Precipitation
0%
Tuesday, 28
Partly Cloudy
90 | 52 °F
Partly Cloudy
Chance of
Precipitation
0%
Source: BestForecast at 3:48 PM MDT on May 19, 2013
Descriptive Forecast
Sunday Night
nt_mostlycloudy Mostly cloudy with rain showers. Low of 45F. Winds from the WNW at 10 to 15 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 46 | 32 68 | 30 64 | 30 52 | 34
Wind 12 mph West 11 mph NW 10 mph WNW 9 mph WNW
Humidity 60% 24% 27% 49%
Chance of Precip. 20% 30% 20% 10%
Cloud Cover 53% 68% 67% 77%
Conditions Rain Showers Thunderstorm Rain Showers Mostly Cloudy
Sunrise & Sunset
5:42 AM
8:13 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.60], Average RMSE [2.55]
The National Weather Service forecast quality is poor. MaxT RMSE [5.74], Average RMSE [2.44] : Use NWS
Source: BestForecast at 3:48 PM MDT on May 19, 2013
Descriptive Forecast
Monday
chancetstorms Overcast with a chance of rain, then a chance of a thunderstorm and rain in the afternoon. High of 70F. Winds from the WNW at 5 to 10 mph. Chance of rain 50%.
Monday Night
nt_chancerain Overcast with a chance of rain. Low of 43F. Winds from the NW at 5 to 10 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 46 | 34 59 | 36 54 | 36 50 | 37
Wind 8 mph West 7 mph NW 8 mph NNW 5 mph WNW
Humidity 60% 39% 49% 65%
Chance of Precip. 20% 50% 50% 40%
Cloud Cover 97% 100% 100% 94%
Conditions Chance of Rain Chance of a Thunderstorm Chance of Rain Chance of Rain
Sunrise & Sunset
5:41 AM
8:14 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.16], Average RMSE [2.18]
The National Weather Service forecast quality is poor. MaxT RMSE [5.92], Average RMSE [2.79] : Use NWS
Source: BestForecast at 3:48 PM MDT on May 19, 2013
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy with a chance of a thunderstorm and a chance of rain in the afternoon. High of 72F. Winds from the NW at 5 to 10 mph.
Tuesday Night
nt_clear Partly cloudy in the evening, then clear. Low of 45F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 46 | 36 66 | 36 63 | 34 50 | 32
Wind 8 mph West 7 mph NNW 4 mph North 2 mph ENE
Humidity 67% 30% 34% 48%
Chance of Precip. 10% 20% 10% 0%
Cloud Cover 66% 72% 46% 0%
Conditions Mostly Cloudy Chance of a Thunderstorm Partly Cloudy Clear
Sunrise & Sunset
5:40 AM
8:15 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.54], Average RMSE [3.05]
The National Weather Service forecast quality is poor. MaxT RMSE [6.16], Average RMSE [4.83] : Use NWS
Source: BestForecast at 3:48 PM MDT on May 19, 2013
Descriptive Forecast
Wednesday
partlycloudy Partly cloudy with a chance of rain in the afternoon. High of 84F. Winds from the North at 5 to 15 mph shifting to the East in the afternoon. Chance of rain 20%.
Wednesday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm and rain in the evening, then clear with a chance of a thunderstorm and rain. Low of 46F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 46 | 27 75 | 34 68 | 45 59 | 41
Wind 3 mph West 11 mph East 9 mph ESE 2 mph ESE
Humidity 47% 21% 42% 48%
Chance of Precip. 0% 0% 30% 20%
Cloud Cover 20% 39% 44% 0%
Conditions Clear Partly Cloudy Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:39 AM
8:16 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.61], Average RMSE [2.81]
The National Weather Service forecast quality is poor. MaxT RMSE [7.38], Average RMSE [5.16] : Use NWS
Source: BestForecast at 3:48 PM MDT on May 19, 2013
Descriptive Forecast
Thursday
chancetstorms Clear in the morning, then partly cloudy with a chance of a thunderstorm and rain. High of 84F. Winds from the SE at 5 to 15 mph. Chance of rain 30%.
Thursday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 48F. Winds from the SE at 5 to 15 mph. Chance of rain 30%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 48 | 41 82 | 43 73 | 48 63 | 45
Wind 3 mph South 12 mph ESE 12 mph ESE 1 mph East
Humidity 71% 23% 40% 51%
Chance of Precip. 10% 10% 30% 10%
Cloud Cover 0% 14% 32% 41%
Conditions Clear Clear Chance of a Thunderstorm Partly Cloudy
Sunrise & Sunset
5:39 AM
8:17 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.72], Average RMSE [2.97]
The National Weather Service forecast quality is poor. MaxT RMSE [7.81], Average RMSE [5.18] : Use NWS
Source: BestForecast at 3:48 PM MDT on May 19, 2013
Descriptive Forecast
Friday
partlycloudy Clear. High of 93F. Winds from the South at 5 to 10 mph.
Friday Night
nt_clear Clear. Low of 54F. Winds from the WSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 50 | 39 88 | 30 81 | 27 63 | 23
Wind 6 mph WSW 6 mph SE 2 mph SSW 9 mph West
Humidity 65% 12% 13% 22%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 37% 1% 0% 0%
Conditions Partly Cloudy Clear Clear Clear
Sunrise & Sunset
5:38 AM
8:18 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.73], Average RMSE [6.00]
The National Weather Service forecast quality is poor. MaxT RMSE [8.47], Average RMSE [6.52] : Use NWS
Source: BestForecast at 3:48 PM MDT on May 19, 2013
Descriptive Forecast
Saturday
partlycloudy Partly cloudy. High of 91F. Winds from the WSW at 5 to 15 mph.
Saturday Night
nt_partlycloudy Partly cloudy. Low of 54F. Winds from the West at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 23 81 | 18 77 | 21 59 | 19
Wind 10 mph West 7 mph SW 8 mph WNW 9 mph West
Humidity 29% 9% 11% 22%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 74% 55% 73% 0%
Conditions Mostly Cloudy Partly Cloudy Mostly Cloudy Clear
Sunrise & Sunset
5:37 AM
8:18 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [6.02], Average RMSE [6.05]
The National Weather Service forecast quality is poor. MaxT RMSE [8.61], Average RMSE [6.72] : Use NWS
Source: BestForecast at 3:48 PM MDT on May 19, 2013
Descriptive Forecast
Sunday
mostlycloudy Mostly cloudy. High of 97F. Winds from the South at 5 to 10 mph.
Sunday Night
nt_partlycloudy Partly cloudy. Low of 52F. Winds from the WNW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 54 | 21 84 | 19 84 | 25 61 | 16
Wind 9 mph West 5 mph SE 5 mph North 9 mph West
Humidity 27% 8% 10% 17%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 94% 51% 88% 73%
Conditions Overcast Partly Cloudy Mostly Cloudy Mostly Cloudy
Sunrise & Sunset
5:37 AM
8:19 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [8.46], Average RMSE [7.02]
Source: BestForecast at 3:48 PM MDT on May 19, 2013
Descriptive Forecast
Monday
partlycloudy Partly cloudy. High of 93F. Winds from the South at 5 to 15 mph.
Monday Night
nt_mostlycloudy Mostly cloudy. Low of 54F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 52 | 16 86 | 18 82 | 21 64 | 25
Wind 10 mph West 4 mph SE 2 mph SSE 2 mph North
Humidity 22% 7% 10% 21%
Chance of Precip. 0% 0% 10% 10%
Cloud Cover 26% 52% 63% 72%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Mostly Cloudy
Sunrise & Sunset
5:36 AM
8:20 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [8.63], Average RMSE [8.54]
Source: BestForecast at 3:48 PM MDT on May 19, 2013
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy. High of 90F. Winds less than 5 mph.
Tuesday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Low of 52F. Winds less than 5 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 28 86 | 28 79 | 27 63 | 30
Wind 2 mph West 5 mph SE 1 mph SSE 2 mph North
Humidity 34% 11% 14% 27%
Chance of Precip. 0% 0% 10% 20%
Cloud Cover 81% 73% 66% 57%
Conditions Mostly Cloudy Mostly Cloudy Mostly Cloudy Chance of a Thunderstorm
Sunrise & Sunset
5:36 AM
8:21 PM
Source: BestForecast at 3:48 PM MDT on May 19, 2013
Descriptive Forecast
Wednesday
partlycloudy Clear. High of 88F. Winds less than 5 mph.
Wednesday Night
nt_clear Clear. Low of 50F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 34 84 | 30 77 | 28 63 | 27
Wind 3 mph West 3 mph SE 1 mph West 3 mph NW
Humidity 43% 14% 15% 26%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 48% 25% 2% 6%
Conditions Partly Cloudy Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Source: BestForecast at 3:48 PM MDT on May 19, 2013
Descriptive Forecast
Thursday
clear Clear. High of 90F. Winds less than 5 mph.
Thursday Night
nt_clear Clear. Low of 50F. Winds from the WNW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 54 | 27 90 | 25 82 | 23 63 | 27
Wind 5 mph West 1 mph SE 1 mph NNW 7 mph West
Humidity 35% 9% 10% 25%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 9% % % %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 19, 2013 Max Temp Min Temp
Normal (KBJC) 69 °F 45 °F
Record (KBJC) 87 °F (2005) 37 °F (2003)
Yesterday 73.0 °F 50.9 °F
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Moderate
OZONE
Yesterday Good
PM10
Current Moderate
OZONE
Current Good
PM2.5
Sunday Good
OZONE
Sunday Good
PM2.5
Monday Moderate
OZONE
Monday Good
PM2.5
Astronomy
May. 19, 2013 Rise Set
Actual Time 5:42 AM MDT 8:13 PM MDT
Civil Twilight 5:11 AM MDT 8:44 PM MDT
Nautical Twilight 4:32 AM MDT 9:23 PM MDT
Astronomical Twilight 3:49 AM MDT 10:07 PM MDT
Moon 2:20 PM MDT 2:06 AM MDT
Length Of Visible Light 15h 33m
Length of Day
14h 31m
Tomorrow will be 1m 42s longer.
Waxing Gibbous, 67% of the Moon is Illuminated
Today
Waxing Gibbous
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
78 °F
Lamar
78 °F
Pueblo
78 °F
La Junta
75 °F
Springfield
70 °F
Erie
24 °F
Monarch Pass
28 °F
Leadville
28 °F
Copper Mountain
30 °F
Alamosa
32 °F
Mount Werner
Record Extremes
Snow Depth
Station Depth Elevation
Niwot 26 in 9910 ft
University Camp 47 in 10300 ft
Wild Basin 114 in 9560 ft
Bear Lake 30 in 9500 ft
Echo Lake 19 in 10600 ft
Snow Depth Reports — Snow Depth Map
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Aviation
City Temp. Conditions Updated
Broomfield 63 °F Mostly Cloudy 3:48 PM MDT
Erie 67 °F Mostly Cloudy 3:55 PM MDT
Berthoud Pass This station is not reporting.
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Flight To ETA Status
No flights were found.
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Type Condition
Flight Rule: VFR (KBJC)
Wind Speed: 8.0 kts.
Wind Dir: 293° (WNW)
Ceiling: 20000 ft

METAR KBJC 192148Z 22008G11KT 50SM FEW060 SCT090TCU BKN200 17/M04 A2980 RMK VIRGA NW-SW

View all Reports & Maps
Nearby Events
Event Date Forecast
the Makerie Sewing 2:00 PM MDT
2013-04-18		 Mostly Cloudy, 36°F
Event data courtesy eviesays.com
Sports
Event Date Forecast
Mariners vs. Indians 1:05 PM EDT on May 19, 2013 Partly Cloudy, 74 °F
Blue Jays vs. Yankees 1:05 PM EDT on May 19, 2013 Chance of Rain, 61 °F
Giants vs. Rockies 2:10 PM MDT on May 19, 2013 Thunderstorm, 65 °F
Diamondbacks vs. Rockies 6:40 PM MDT on May 20, 2013 Chance of Rain, 54 °F
Event Date Forecast
Athletic vs. Zaragoza 7:00 PM CEST on May 19, 2013 Chance of Rain, High 62° F/ 17° C
Los Angeles vs. New York 1:00 PM EDT on May 19, 2013 Chance of Rain, 61 °F
Chivas USA vs. Colorado 7:00 PM MDT on May 25, 2013 Partly Cloudy, 79 °F
FC Dallas vs. Colorado 7:00 PM MDT on June 01, 2013 Average High 74° F/ 23° C
Event Date Forecast
Coca-Cola 600 6:16 PM EDT on May 26, 2013 Average High 79° F/ 26° C
FedEx 400 benefiting Autism Speaks 1:15 PM EDT on June 02, 2013 Average High 81° F/ 27° C
Event Date Forecast
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 23, 2013 Partly Cloudy, 67 °F
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 24, 2013 Partly Cloudy, 68 °F
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Weather Stations
Station Location Temp. Heat Index Dew Point Humidity Wind Precipitation Elevation Updated Type Website
APRSWXNET Boulder CO , Boulder, CO 65 °F - 31 °F 28% ENE  at  4 mph 0.00 in / hr 5446 ft 3:29 PM MDT MADIS
Old North Boulder, Boulder, CO 66.4 °F - 35 °F 31% WNW  at  6.2 mph 0.00 in / hr 5370 ft 4:01 PM MDT Normal  
Quince Ave., Boulder, CO 69.6 °F - 37 °F 30% South  at  0.0 mph 0.00 in / hr 5541 ft 4:00 PM MDT Normal  
Downtown, Boulder, CO 64.8 °F - 30 °F 27% WNW  at  3.0 mph 14.40 in / hr 5400 ft 4:00 PM MDT Normal
15th and High St., Boulder, CO 64.7 °F - 32 °F 29% WSW  at  4.0 mph 0.00 in / hr 5423 ft 4:00 PM MDT Normal  
Whittier, Boulder, CO 67.3 °F - 33 °F 28% WNW  at  1.9 mph 0.00 in / hr 5318 ft 4:00 PM MDT Rapid Fire  
Pinebrook Hills, Boulder, CO 59.4 °F - 30 °F 33% WSW  at  6.0 mph 0.00 in / hr 6270 ft 3:59 PM MDT Normal
INTERNET NCAR Foothills Lab , Boulder, CO 65 °F - 31 °F 28% NE  at  10 mph 0.00 in / hr 5331 ft 3:35 PM MDT MADIS
Lee Hill, Boulder, CO 62.6 °F - 30 °F 29% NW  at  13.0 mph 0.00 in / hr 5815 ft 4:00 PM MDT Normal  
Peloton, Boulder, CO 67.2 °F - - - North  at  - - / hr 5380 ft 3:59 PM MDT Normal  
Aurora 7, Boulder, CO 65.7 °F - 33 °F 30% East  at  7.6 mph 0.00 in / hr 5295 ft 4:00 PM MDT Rapid Fire  
Arapahoe Ridge, Boulder, CO 64.8 °F - 29 °F 26% NNW  at  3.0 mph 0.00 in / hr 5262 ft 4:00 PM MDT Normal  
South Boulder, Boulder, CO 64.0 °F - 37 °F 37% WSW  at  1.0 mph 0.00 in / hr 5395 ft 4:00 PM MDT Normal  
The Ridge @ Lake Valley, Niwot, CO 65.2 °F - 30 °F 27% WNW  at  21.0 mph 0.00 in / hr 5383 ft 4:00 PM MDT Rapid Fire  
INTERNET NCAR Table Mesa , Boulder, CO 61 °F - 26 °F 26% NNE  at  14 mph 0.00 in / hr 6184 ft 3:37 PM MDT MADIS
Majestic Heights, Boulder, CO 64.0 °F - 34 °F 33% North  at  1.0 mph 0.00 in / hr 5419 ft 4:00 PM MDT Rapid Fire  
63rd St & Jay Rd, Boulder, CO 66.3 °F - 29 °F 25% NW  at  9.0 mph 0.00 in / hr 5202 ft 4:00 PM MDT Normal  
Boulder Fire Training Ctr., Boulder, CO 65.0 °F - 34 °F 32% West  at  11.0 mph 0.00 in / hr 5141 ft 4:00 PM MDT Rapid Fire  
Cherryvale, Boulder, CO 66.4 °F - 38 °F 35% North  at  0.0 mph 0.00 in / hr 5291 ft 4:00 PM MDT Rapid Fire  
Shanahan Ridge, Boulder, CO 61.6 °F - 34 °F 35% NNE  at  4.0 mph - / hr 5700 ft 3:58 PM MDT Normal
Gunbarrel Green, Boulder, CO 70.5 °F 74 °F - 19% North  at  - 0.00 in / hr 5239 ft 4:00 PM MDT Rapid Fire
Fountain Greens, Boulder, CO 67.9 °F - 33 °F 28% NNW  at  4.0 mph 0.00 in / hr 5343 ft 4:00 PM MDT Rapid Fire  
Heatherwood, Boulder, CO 68.6 °F - 35 °F 29% NNW  at  3.4 mph 0.00 in / hr 5289 ft 4:00 PM MDT Rapid Fire  
Heatherwood, Boulder, CO 67.3 °F - 36 °F 31% NE  at  1.3 mph - / hr 5326 ft 3:59 PM MDT Normal  
Niwot 3W, (BES Weather), CO 68.5 °F - 35 °F 29% WNW  at  9.1 mph 0.00 in / hr 5178 ft 4:00 PM MDT Rapid Fire  
North Boulder - US36, Boulder, CO 65.5 °F - 29 °F 25% WSW  at  14.0 mph - / hr 5620 ft 3:58 PM MDT Normal
Davidson Mesa, Boulder, CO 65.7 °F - 29 °F 25% NE  at  0.7 mph 0.00 in / hr 5663 ft 4:00 PM MDT Normal  
Eldorado Springs, CO, Eldorado Springs, CO 64.4 °F - 22 °F 20% SW  at  3.6 mph 0.00 in / hr 5800 ft 4:01 PM MDT Normal
Table Mountain, East Slope, Longmont, CO 67.0 °F - 34 °F 30% WNW  at  0.0 mph - / hr 5420 ft 3:54 PM MDT Normal  
UDFCD Louisville_Lake, Louisville, CO 62 °F - 35 °F 37% SW  at  5 mph 0.00 in / hr 5580 ft 3:30 PM MDT MADIS
Niwot, CO 67.3 °F - 31 °F 26% NE  at  3.0 mph 0.00 in / hr 5190 ft 4:01 PM MDT Rapid Fire  
US36 and Nelson Road, Longmont, CO 65.7 °F - 40 °F 39% West  at  8.0 mph 0.00 in / hr 5608 ft 3:51 PM MDT Normal  
Niwot, CO 68.6 °F - 30 °F 24% WSW  at  2.5 mph 0.00 in / hr 5200 ft 4:00 PM MDT Normal  
North Boulder Ridge, Boulder, CO 62.6 °F - 7 °F 11% WNW  at  14.0 mph 0.00 in / hr 6500 ft 3:45 PM MDT Normal  
RAWS SUGARLOAF CO, Boulder, CO 65 °F - 23 °F 20% West  at  9 mph 0.00 in / hr 6732 ft 3:25 PM MDT MADIS
Boulder Heights, Boulder, CO 50.7 °F - 30 °F 44% West  at  8.9 mph 0.00 in / hr 7694 ft 4:00 PM MDT Rapid Fire  
PlugNickel, Jamestown, CO 52.2 °F - 30 °F 42% West  at  23.0 mph 0.00 in / hr 7600 ft 3:50 PM MDT Normal  
UDFCD Sugarloaf, Boulder, CO 58 °F - 31 °F 35% WNW  at  5 mph 0.00 in / hr 7859 ft 3:30 PM MDT MADIS
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