Philadelphia, PA

4:46 AM EDT on May 20, 2013 (GMT -0400)
Elev: 141 ft
Lon: 75.2° W
Lat: 40.0° N
Source
Rapid Fire Updates™
 Updated 4:46 AM EDT Get Free Weather Stickers® Share:
Your Custom Weather Sticker®

Copy the following lines of HTML:
Get more styles and options for your Weather Sticker® here.
Active Advisory: Dense Fog Advisory (US Severe Weather)
News
Tornadoes Touch Down in the Great Plains
May 19, 2013
Severe weather developed throughout the Great Plains on Sunday, producing baseball size hail and long-lived tornadoes.
Tornado Hits OKC Suburb, Kicking Up Debris
May 19, 2013
A tornado kicked up debris in an Oklahoma City suburb and threatened a number of tourist attractions on historic Route 66 but there were no immediate reports of injuries or major damage.
Tornado Touches Down 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.
More News Articles
Weather Summary
Kari Kiefer
Weather Underground Forecast for Monday, May 20, 2013.

Heavy rains and severe thunderstorm activity will continue for areas of the Plains into the Midwest on Monday as a broad, nearly stationary low sits over the Northern Plains. As the system lingers, ample moisture and energy will stream northward from the Gulf of Mexico, while an associated cold front extends from the low into Iowa and back across the Central and Southern Plains. The sharpening cold front combined with a dry line in the Southern Plains and the moisture laden conditions of the region will allow for multiple clusters of thunderstorms to develop across the Plains and into the Mid-Mississippi Valley. Portions of Oklahoma, southeastern Kansas, extreme, northwestern Arkansas, an southwestern Missouri are at moderate risk of severe thunderstorm activity as environmental conditions remain favorable for strong tornadoes, damaging wind gusts, and very large hail. Areas surrounding this moderate risk region from the parts of the southwestern Texas into the Upper Great Lakes are at slight risk of severe thunderstorm development with hail and isolated tornadoes.

Meanwhile, areas of heavy rain and widely scattered showers will persist near the low and it's associated warm front in portions of the north-central U.S. Continued precipitation in these already saturate areas combined with rapid runoff will continue flood concerns from parts of North Dakota into northwestern Wisconsin.

Elsewhere, scattered showers and thunderstorms are expected in the Mid-Atlantic and southeastern corner of the nation as a weak upper trough of low pressure drops southward over the region. Locally heavy rain amounts of up to 2 inches may result in areas of minor flooding, especially in poor drainage areas. To the north, additional showers will be possible in the Northeast.
Weather Underground Forecast for Monday, May 20, 2013.

Heavy rains and severe thunderstorm activity will continue for areas of the Plains into the Midwest on Monday as a broad, nearly stationary low sits over the Northern Plains. As the system lingers, ample moisture and energy will stream northward from the Gulf of Mexico, while an associated cold front extends from the low into Iowa and back across the Central and Southern Plains. The sharpening cold front combined with a dry line in the Southern Plains and the moisture laden conditions of the region will allow for multiple clusters of thunderstorms to develop across the Plains and into the Mid-Mississippi Valley. Portions of Oklahoma, southeastern Kansas, extreme, northwestern Arkansas, an southwestern Missouri are at moderate risk of severe thunderstorm activity as environmental conditions remain favorable for strong tornadoes, damaging wind gusts, and very large hail. Areas surrounding this moderate risk region from the parts of the southwestern Texas into the Upper Great Lakes are at slight risk of severe thunderstorm development with hail and isolated tornadoes.

Meanwhile, areas of heavy rain and widely scattered showers will persist near the low and it's associated warm front in portions of the north-central U.S. Continued precipitation in these already saturate areas combined with rapid runoff will continue flood concerns from parts of North Dakota into northwestern Wisconsin.

Elsewhere, scattered showers and thunderstorms are expected in the Mid-Atlantic and southeastern corner of the nation as a weak upper trough of low pressure drops southward over the region. Locally heavy rain amounts of up to 2 inches may result in areas of minor flooding, especially in poor drainage areas. To the north, additional showers will be possible in the Northeast.
More News Articles

Philadelphia Weather at a Glance

Updated 4:46 AM EDT
Elevation
52 ft
Report Station
You are about to report this weather station for bad data.

Please select the information which is incorrect and click 'Submit' otherwise click 'Cancel'.

— Cancel

Now
Fog
Fog
Temperature
62.6 °F
Feels Like 62.6 °F
Wind(mph)
0.0
Sunrise / Set
5:41 AM
8:13 PM
Moon
Waxing Gibbous
Today
Chance of a Thunderstorm 82 °F
Chance of T-storms
40% chance of precipitation
Tonight
Mostly Cloudy 70 °F
Mostly Cloudy
20% chance of precipitation
Tomorrow
Chance of a Thunderstorm 90 | 73 °F
Chance of T-storms
30% chance of precipitation
Wednesday
Chance of a Thunderstorm 91 | 73 °F
Chance of T-storms
30% chance of precipitation
Thursday
Chance of a Thunderstorm 84 | 70 °F
Chance of T-storms
50% chance of precipitation
Friday
Chance of a Thunderstorm 77 | 55 °F
Chance of T-storms
50% chance of precipitation
Today is forecast to be Warmer than yesterday.
Conditions
Pressure
30.10 in
Visibility
0.5 miles
Clouds
Moisture
Humidity
96%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
SPECI KPHL 200811Z 00000KT 1/2SM R09R/3000V4000FT FG VV002 17/16 A3010 RMK AO2 $
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Temperature
62.6 °F
63,63,63,63,63,63,63,63,63,63,62,63,62
Dew Point
62 °F
Wind
Speed / Dir
Calm
Wind Gust
0.0 mph
Health
UV
Not available.
Pollen
3.60 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Good
Flu Activity
Sporadic
View Flu Map
Loading…
Source: BestForecast
Descriptive Forecast
Monday
chancetstorms Overcast with a chance of rain in the morning, then partly cloudy with a chance of a thunderstorm and a chance of rain. High of 82F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.
Monday Night
nt_mostlycloudy Mostly cloudy with a chance of a thunderstorm and a chance of rain. Low of 70F. Winds less than 5 mph. Chance of rain 20%.
Tuesday
chancetstorms Partly cloudy with a chance of rain, then a chance of a thunderstorm and a chance of rain in the afternoon. High of 90F. Winds less than 5 mph. Chance of rain 30%.
Tuesday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm and a chance of rain. Low of 73F. Winds less than 5 mph. Chance of rain 40%.
Wednesday
chancetstorms Mostly cloudy with a chance of a thunderstorm and a chance of rain. High of 91F. Winds from the SSE at 5 to 10 mph. Chance of rain 30%.
Wednesday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm and a chance of rain, then a chance of a thunderstorm and rain after midnight. Low of 73F. Winds from the South at 10 to 15 mph. Chance of rain 20%.
Thursday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 84F. Winds from the SSW at 10 to 15 mph. Chance of rain 50%.
Thursday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and rain in the evening, then partly cloudy with a chance of a thunderstorm and rain. Low of 70F. Winds from the South at 5 to 10 mph shifting to the WNW after midnight. Chance of rain 60%.
Friday
chancetstorms Partly cloudy with a chance of a thunderstorm and rain in the morning, then clear with a chance of rain. High of 77F. Winds from the NNE at 5 to 15 mph. Chance of rain 50%.
Friday Night
nt_clear Clear with a chance of rain. Low of 55F. Winds from the NNE at 5 to 10 mph. Chance of rain 20%.
Saturday
clear Clear. High of 75F. Winds from the NE at 5 to 10 mph.
Saturday Night
nt_mostlycloudy Overcast. Low of 55F. Winds from the South at 5 to 10 mph shifting to the North after midnight.
Sunday
partlycloudy Partly cloudy. High of 75F. Winds from the NE at 5 to 10 mph shifting to the ESE in the afternoon.
Sunday Night
nt_mostlycloudy Mostly cloudy. Low of 63F. Winds less than 5 mph.
Monday
mostlycloudy Mostly cloudy. High of 72F. Winds less than 5 mph.
Monday Night
nt_partlycloudy Partly cloudy. Low of 57F. Winds less than 5 mph.
Tuesday
chancerain Mostly cloudy with a chance of rain. High of 75F. Winds less than 5 mph. Chance of rain 40%.
Tuesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Fog overnight. Low of 55F. Winds less than 5 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.
Wednesday
chancetstorms Overcast with a chance of a thunderstorm. High of 81F. Winds less than 5 mph. Chance of rain 40%.
Wednesday Night
nt_mostlycloudy Mostly cloudy. Fog overnight. Low of 59F. Winds less than 5 mph.
Thursday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 82F. Winds less than 5 mph. Chance of rain 40%.
Thursday Night
nt_partlycloudy Clear with a chance of a thunderstorm. Fog overnight. Low of 59F. Winds less than 5 mph. Chance of rain 20%.
Loading…
 
First Previous Last Next  
Updated:  
 
 

 

Nowcast
Dense fog advisory in effect until 8 am EDT this morning...

Weather Forecast for Philadelphia PA

View Calendar 10-Day Forecast for station KPAPHILA4

Monday, 20
Chance of a Thunderstorm
82 | 70 °F
Chance of T-storms
Chance of
Precipitation
40%
Tuesday, 21
Chance of a Thunderstorm
90 | 73 °F
Chance of T-storms
Chance of
Precipitation
30%
Wednesday, 22
Chance of a Thunderstorm
91 | 73 °F
Chance of T-storms
Chance of
Precipitation
30%
Thursday, 23
Chance of a Thunderstorm
84 | 70 °F
Chance of T-storms
Chance of
Precipitation
50%
Friday, 24
Chance of a Thunderstorm
77 | 55 °F
Chance of T-storms
Chance of
Precipitation
50%
Saturday, 25
Clear
75 | 55 °F
Clear
Chance of
Precipitation
0%
Sunday, 26
Partly Cloudy
75 | 63 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 27
Mostly Cloudy
72 | 57 °F
Mostly Cloudy
Chance of
Precipitation
0%
Tuesday, 28
Chance of Rain
75 | 55 °F
Chance of Rain
Chance of
Precipitation
40%
Wednesday, 29
Chance of a Thunderstorm
81 | 59 °F
Chance of T-storms
Chance of
Precipitation
40%
Source: BestForecast at 3:45 AM EDT on May 20, 2013
Descriptive Forecast
Monday
chancetstorms Overcast with a chance of rain in the morning, then partly cloudy with a chance of a thunderstorm and a chance of rain. High of 82F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.
Monday Night
nt_mostlycloudy Mostly cloudy with a chance of a thunderstorm and a chance of rain. Low of 70F. Winds less than 5 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 68 | 63 82 | 63 81 | 64 75 | 64
Wind 6 mph SSW 9 mph SW 7 mph SW 4 mph SW
Humidity 79% 51% 56% 65%
Chance of Precip. 30% 40% 40% 30%
Cloud Cover 98% 78% 67% 77%
Conditions Chance of Rain Chance of Rain Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:41 AM
8:13 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.52], Average RMSE [1.84]
The National Weather Service forecast quality is good. MaxT RMSE [2.37], Average RMSE [2.57] : Use NWS
Source: BestForecast at 3:45 AM EDT on May 20, 2013
Descriptive Forecast
Tuesday
chancetstorms Partly cloudy with a chance of rain, then a chance of a thunderstorm and a chance of rain in the afternoon. High of 90F. Winds less than 5 mph. Chance of rain 30%.
Tuesday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm and a chance of rain. Low of 73F. Winds less than 5 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 73 | 64 86 | 65 87 | 64 78 | 65
Wind 2 mph WSW 3 mph SW 5 mph SSE 3 mph ESE
Humidity 72% 51% 48% 65%
Chance of Precip. 20% 30% 30% 40%
Cloud Cover 68% 58% 60% 71%
Conditions Chance of a Thunderstorm Chance of Rain Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:40 AM
8:14 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.69], Average RMSE [1.52]
The National Weather Service forecast quality is good. MaxT RMSE [2.48], Average RMSE [2.49] : Use NWS
Source: BestForecast at 3:45 AM EDT on May 20, 2013
Descriptive Forecast
Wednesday
chancetstorms Mostly cloudy with a chance of a thunderstorm and a chance of rain. High of 91F. Winds from the SSE at 5 to 10 mph. Chance of rain 30%.
Wednesday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm and a chance of rain, then a chance of a thunderstorm and rain after midnight. Low of 73F. Winds from the South at 10 to 15 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 73 | 66 87 | 66 83 | 66 82 | 65
Wind 3 mph West 5 mph SSE 5 mph South 12 mph SSW
Humidity 76% 48% 53% 58%
Chance of Precip. 40% 30% 30% 10%
Cloud Cover 73% 71% 74% 75%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Mostly Cloudy
Sunrise & Sunset
5:39 AM
8:15 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.29], Average RMSE [2.44]
The National Weather Service forecast quality is fair. MaxT RMSE [3.04], Average RMSE [2.47] : Use NWS
Source: BestForecast at 3:45 AM EDT on May 20, 2013
Descriptive Forecast
Thursday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 84F. Winds from the SSW at 10 to 15 mph. Chance of rain 50%.
Thursday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and rain in the evening, then partly cloudy with a chance of a thunderstorm and rain. Low of 70F. Winds from the South at 5 to 10 mph shifting to the WNW after midnight. Chance of rain 60%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 78 | 65 83 | 69 81 | 69 77 | 64
Wind 11 mph SSW 11 mph SW 9 mph SSW 5 mph SSW
Humidity 64% 58% 67% 64%
Chance of Precip. 20% 20% 30% 30%
Cloud Cover 45% 96% 97% 99%
Conditions Chance of a Thunderstorm Chance of Rain Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:38 AM
8:16 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.34], Average RMSE [3.37]
The National Weather Service forecast quality is fair. MaxT RMSE [3.49], Average RMSE [2.77] : Use NWS
Source: BestForecast at 3:45 AM EDT on May 20, 2013
Descriptive Forecast
Friday
chancetstorms Partly cloudy with a chance of a thunderstorm and rain in the morning, then clear with a chance of rain. High of 77F. Winds from the NNE at 5 to 15 mph. Chance of rain 50%.
Friday Night
nt_clear Clear with a chance of rain. Low of 55F. Winds from the NNE at 5 to 10 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 72 | 63 74 | 64 74 | 61 66 | 55
Wind 5 mph North 10 mph NNE 6 mph NE 5 mph NNE
Humidity 72% 68% 61% 66%
Chance of Precip. 10% 20% 10% 10%
Cloud Cover 18% 27% 4% 0%
Conditions Clear Chance of a Thunderstorm Clear Clear
Sunrise & Sunset
5:38 AM
8:17 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.06], Average RMSE [3.74]
The National Weather Service forecast quality is poor. MaxT RMSE [3.67], Average RMSE [2.71] : Use NWS
Source: BestForecast at 3:45 AM EDT on May 20, 2013
Descriptive Forecast
Saturday
clear Clear. High of 75F. Winds from the NE at 5 to 10 mph.
Saturday Night
nt_mostlycloudy Overcast. Low of 55F. Winds from the South at 5 to 10 mph shifting to the North after midnight.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 58 | 43 71 | 47 69 | 50 62 | 46
Wind 9 mph NNE 7 mph NNE 4 mph ENE 3 mph SSW
Humidity 55% 41% 49% 52%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 0% 0% 46% 96%
Conditions Clear Clear Partly Cloudy Overcast
Sunrise & Sunset
5:37 AM
8:18 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.89], Average RMSE [2.36]
The National Weather Service forecast quality is poor. MaxT RMSE [3.75], Average RMSE [2.69] : Use NWS
Source: BestForecast at 3:45 AM EDT on May 20, 2013
Descriptive Forecast
Sunday
partlycloudy Partly cloudy. High of 75F. Winds from the NE at 5 to 10 mph shifting to the ESE in the afternoon.
Sunday Night
nt_mostlycloudy Mostly cloudy. Low of 63F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 60 | 42 69 | 49 71 | 54 65 | 49
Wind 6 mph NNE 6 mph ENE 5 mph ESE 5 mph SE
Humidity 52% 49% 52% 54%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 13% 36% 75% 98%
Conditions Clear Partly Cloudy Mostly Cloudy Overcast
Sunrise & Sunset
5:36 AM
8:18 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.52], Average RMSE [2.94]
The National Weather Service forecast quality is fair. MaxT RMSE [3.20], Average RMSE [2.90] : Use NWS
Source: BestForecast at 3:45 AM EDT on May 20, 2013
Descriptive Forecast
Monday
mostlycloudy Mostly cloudy. High of 72F. Winds less than 5 mph.
Monday Night
nt_partlycloudy Partly cloudy. Low of 57F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 63 | 47 66 | 50 69 | 52 63 | 54
Wind 2 mph SSE 4 mph ESE 7 mph South 3 mph SE
Humidity 54% 54% 53% 69%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 93% 93% 63% 64%
Conditions Overcast Overcast Partly Cloudy Mostly Cloudy
Sunrise & Sunset
5:36 AM
8:19 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.72], Average RMSE [3.98]
Source: BestForecast at 3:45 AM EDT on May 20, 2013
Descriptive Forecast
Tuesday
chancerain Mostly cloudy with a chance of rain. High of 75F. Winds less than 5 mph. Chance of rain 40%.
Tuesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Fog overnight. Low of 55F. Winds less than 5 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 57 | 54 70 | 56 73 | 59 64 | 59
Wind 2 mph ESE 2 mph ESE 4 mph SE 4 mph SE
Humidity 88% 60% 60% 85%
Chance of Precip. 0% 10% 10% 10%
Cloud Cover 50% 56% 84% 96%
Conditions Partly Cloudy Partly Cloudy Mostly Cloudy Overcast
Sunrise & Sunset
5:35 AM
8:20 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.95], Average RMSE [3.68]
Source: BestForecast at 3:45 AM EDT on May 20, 2013
Descriptive Forecast
Wednesday
chancetstorms Overcast with a chance of a thunderstorm. High of 81F. Winds less than 5 mph. Chance of rain 40%.
Wednesday Night
nt_mostlycloudy Mostly cloudy. Fog overnight. Low of 59F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 61 | 60 75 | 65 78 | 68 68 | 65
Wind 2 mph SE 2 mph SSE 4 mph SSE 4 mph SSE
Humidity 96% 70% 71% 93%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 94% 93% 92% 85%
Conditions Fog Overcast Overcast Mostly Cloudy
Sunrise & Sunset
5:35 AM
8:21 PM
Source: BestForecast at 3:45 AM EDT on May 20, 2013
Descriptive Forecast
Thursday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 82F. Winds less than 5 mph. Chance of rain 40%.
Thursday Night
nt_partlycloudy Clear with a chance of a thunderstorm. Fog overnight. Low of 59F. Winds less than 5 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 65 | 64 77 | 69 80 | 71 68 | 67
Wind 3 mph SSE 3 mph South 5 mph SSE 5 mph SSE
Humidity 96% 73% 75% 96%
Chance of Precip. 0% 10% 10% 10%
Cloud Cover 72% 62% 55% %
Conditions Fog Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 20, 2013 Max Temp Min Temp
Normal (KPHL) 75 °F 55 °F
Record (KPHL) 94 °F (1962) 43 °F (2002)
Yesterday 64 °F 59 °F
Yesterday's Heating Degree Days: 3
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 Good
PM2.5
Yesterday Good
OZONE
Current Good
PM2.5
Current Good
OZONE
Monday Good
PM2.5
Monday Good
OZONE
Tuesday Moderate
OZONE
Tuesday Moderate
PM2.5
Wednesday Moderate
OZONE
Wednesday Moderate
PM2.5
Coastal Water Temperatures
Place Temperature
Ship John Shoal, NJ 64.0 °F
Cape May, NJ 64.9 °F
Delaware City, DE 66.0 °F
Marcus Hook, PA 71.1 °F
Marine Forecast
Astronomy
May. 20, 2013 Rise Set
Actual Time 5:41 AM EDT 8:13 PM EDT
Civil Twilight 5:10 AM EDT 8:45 PM EDT
Nautical Twilight 4:31 AM EDT 9:23 PM EDT
Astronomical Twilight 3:48 AM EDT 10:07 PM EDT
Moon 3:19 PM EDT 2:34 AM EDT
Length Of Visible Light 15h 35m
Length of Day
14h 32m
Tomorrow will be 1m 39s longer.
Waxing Gibbous, 72% of the Moon is Illuminated
Today
Waxing Gibbous
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
66 °F
Pittsburgh
66 °F
Erie
64 °F
New Castle
64 °F
Butler
64 °F
Altoona
53 °F
Mt. Pocono
55 °F
Allentown
55 °F
Doylestown
57 °F
Franklin
57 °F
Butler
Record Extremes
Snow Depth
Station Depth Elevation
No new snow has been reported.
Snow Depth Reports — Snow Depth Map
Follow us on Twitter Find us on Facebook Community
WunderPhotos®
Fingers
Evening Sunlight
• • • • • • • • • •
Uploaded by: taddarkprince
1,613,188 photos uploaded!
Upload a photo now
Visit WunderPhotos
WunderBlogs®

There are no recent blogs in this area. Why not create your own?

Visit WunderBlogs
Travel & Activities
Travel Planning
Travel Planner Road Trip Planner
Destination? *
When are you going?
to
Is there an activity you would like to explore?
* Required field
View all Travel Tools
Aviation
City Temp. Conditions Updated
Philadelphia 63 °F Fog 4:11 AM EDT
Northeast Philadelphia 59 °F Fog 3:54 AM EDT
Philadelphia Wings Airport This station is not reporting.
Mount Holly 60 °F Fog 2:54 AM EDT
View all Aviation Tools
Flight To ETA Status
AWE797
Tel Aviv 		KPHL 04:47AM On Time
AWE431
Las Vegas, NV 		KPHL 05:56AM On Time
AWE1198
Phoenix, AZ 		KPHL 06:01AM On Time
AWE159
San Diego, CA 		KPHL 06:03AM On Time
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: LIFR (KPHL)
Wind Speed: 0.0 kts.
Wind Dir: 180° (South)
Ceiling: Unlimited

SPECI KPHL 200811Z 00000KT 1/2SM R09R/3000V4000FT FG VV002 17/16 A3010 RMK AO2 $

View all Reports & Maps
Nearby Events
Event Date Forecast
Danielson, Deerhoof, and People Get Ready 8:00 PM EDT
2013-04-15		 Clear, 61°F
Small Houses 9:00 PM EDT
2013-04-15		 Clear, 56°F
TIMON OF ATHENS 8:00 PM EDT
2013-04-15		 Clear, 61°F
Walnut Street Theatre's Good People 8:00 PM EDT
2013-04-16		 Chance of Rain, 64°F
Ivan & Alyosha 9:00 PM EDT
2013-04-16		 Chance of Rain, 62°F
Walnut Street Theatre's Good People 8:00 PM EDT
2013-04-17		 Chance of Rain, 66°F
Event data courtesy eviesays.com
Sports
Event Date Forecast
Mariners vs. Indians 12:05 PM EDT on May 20, 2013 Partly Cloudy, 74 °F
Rays vs. Blue Jays 1:07 PM EDT on May 20, 2013 Scattered Clouds, High 71° F/ 22° C
Red Sox vs. Phillies 7:05 PM EDT on May 29, 2013 Average High 77° F/ 24° C
Red Sox vs. Phillies 7:05 PM EDT on May 30, 2013 Average High 77° F/ 24° C
Event Date Forecast
Real Salt Lake vs. Chivas USA 7:30 PM PDT on May 19, 2013 Clear, 65 °F
Murcia vs. Guadalajara 3:00 PM EDT on May 20, 2013 Forecast not available.
Columbus vs. Philadelphia 7:30 PM EDT on June 05, 2013 Average High 78° F/ 25° C
New York vs. Philadelphia 5:00 PM EDT on June 23, 2013 Average High 83° F/ 28° C
Event Date Forecast
Coca-Cola 600 6:16 PM EDT on May 26, 2013 Partly Cloudy, 74 °F
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, 70 °F
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 24, 2013 Partly Cloudy, 70 °F
View all Sports Weather
Videos
Year In Weather 2012

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.

Visit Our Video Section
Weather Stations
Station Location Temp. Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Center City East, Philadelphia, PA 62.6 °F 62 °F 96% South  at  0.0 mph 0.00 in / hr 52 ft 4:46 AM EDT Rapid Fire  
Old City Philadelphia, Philadelphia, PA 61.4 °F 60 °F 97% NNE  at  0.0 mph 0.01 in / hr 85 ft 4:46 AM EDT Rapid Fire  
Broad and Washington, Philadelphia, PA 63.5 °F 59 °F 85% East  at  1.0 mph 0.00 in / hr 0 ft 4:46 AM EDT Rapid Fire  
NOS_NWLON Philadelphia, PA , Philadelphia, PA 62 °F - - North  at  - 0.00 in / hr 0 ft 4:12 AM EDT MADIS
University City - West Philadelphia, Philadelphia, PA 60.9 °F 61 °F 100% NNE  at  0.0 mph 0.00 in / hr 70 ft 4:32 AM EDT Normal  
West Philly, Philadelphia, PA 61.9 °F 62 °F 99% East  at  0.0 mph 0.00 in / hr 20 ft 4:45 AM EDT Normal
Port Richmond (JcWeather), Philadelphia, PA 63.3 °F 63 °F 100% NE  at  0.0 mph 0.00 in / hr 20 ft 4:44 AM EDT Normal
APRSWXNET Camden NJ , Pennsauken, NJ 60 °F 59 °F 96% ENE  at  0 mph 0.00 in / hr 19 ft 4:10 AM EDT MADIS
Nicholson Rd, Audubon, NJ 61.9 °F 61 °F 97% SE  at  0.0 mph 0.00 in / hr 56 ft 4:46 AM EDT Rapid Fire  
APRSWXNET Phila PA , Philadelphia, PA 59 °F 59 °F 100% SE  at  0 mph 0.00 in / hr 259 ft 4:05 AM EDT MADIS
West Mount Airy, Philadelphia, PA 59.3 °F 58 °F 97% East  at  0.0 mph 0.00 in / hr 346 ft 4:46 AM EDT Rapid Fire  
Palmyra, NJ, Palmyra, NJ 59.5 °F 57 °F 92% NE  at  0.5 mph - / hr 16 ft 4:46 AM EDT Normal  
Gilham & Battersby, Philadelphia, PA 60.3 °F 60 °F 99% West  at  0.0 mph 0.00 in / hr 72 ft 4:46 AM EDT Normal  
Havertown, Havertown, PA 60.9 °F 61 °F 100% NE  at  0.0 mph 0.00 in / hr 295 ft 4:46 AM EDT Rapid Fire
Cherry Hill, Cherry Hill, NJ 62.2 °F 62 °F 98% ENE  at  0.0 mph 0.00 in / hr 66 ft 4:41 AM EDT Normal  
Haddonfield, NJ, Haddonfield, NJ 61.1 °F 60 °F 97% NE  at  0.0 mph 0.00 in / hr 80 ft 4:31 AM EDT Normal  
APRSWXNET Holmes PA , Holmes, PA 60 °F 59 °F 98% ENE  at  0 mph 0.00 in / hr 199 ft 4:01 AM EDT MADIS
APRSWXNET Palmyra NJ , Palmyra, NJ 59 °F 58 °F 98% North  at  0 mph 0.01 in / hr 19 ft 4:16 AM EDT MADIS
Germantown Ave. Chestnut Hill, Philadelphia, PA 59.9 °F 57 °F 91% North  at  0.0 mph 0.00 in / hr 185 ft 4:33 AM EDT Normal
Palmyra, NJ 59.8 °F 59 °F 98% North  at  0.0 mph 0.01 in / hr 20 ft 4:46 AM EDT Normal
Cinnaminson, NJ 60.8 °F 59 °F 94% North  at  - - / hr 75 ft 4:40 AM EDT Normal  
Cinnaminson Street, Riverton, NJ 60.5 °F 58 °F 91% NNW  at  0.0 mph 0.00 in / hr 13 ft 4:45 AM EDT Normal  
Brookfield, Cherry Hill, NJ 62.2 °F 60 °F 93% SE  at  0.0 mph 0.00 in / hr 55 ft 4:45 AM EDT Normal
Church Rd, Cinnaminson, Cinnaminson, NJ 60.9 °F 60 °F 98% ESE  at  0.0 mph 0.00 in / hr 69 ft 4:38 AM EDT Normal  
Erdenheim, Erdenheim, PA 58.3 °F 58 °F 100% NNE  at  0.0 mph 0.00 in / hr 220 ft 4:40 AM EDT Normal
Steve's Ogden Ave Weather, Swarthmore, PA 61.8 °F 62 °F 100% NE  at  0.0 mph 0.00 in / hr 167 ft 4:46 AM EDT Rapid Fire  
Blackwood, Chews Landing, NJ 61.6 °F 61 °F 97% SSW  at  0.0 mph 0.00 in / hr 99 ft 4:43 AM EDT Normal  
Would you like to share your weather data with the rest of the world? Add Your Weather Station!
Dense Fog Advisory
Mobile & Email Alerts Statement as of 2:20 AM EDT on May 20, 2013

... Dense fog advisory in effect until 8 am EDT this morning...

The National Weather Service in Mount Holly has issued a dense
fog advisory. It is in effect until 800 am.

* Visibility... reduced to less than a quarter mile at times.

* Impacts... the reduced visibility will affect travel in the
region.

Precautionary/preparedness actions...

A dense fog advisory means that the visibility will be reduced to
less than one quarter mile. If you will be driving, proceed at a
reasonable speed and be sure to leave plenty of distance between
your vehicle and the one ahead of you.