Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

Hazardous Weather Conditions

Heat Advisory until August 8, 08:00 PM EDT

Current conditions at

Philadelphia - Wings Field Airport (KLOM)

Lat: 40.14°NLon: 75.27°WElev: 282ft.

Fair

73°F

23°C

Humidity	99%
Wind Speed	Calm
Barometer	30.10 in
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Last update	7 Aug 8:15 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Devon-Berwyn PA

Heat Advisory August 7, 08:33pm until August 8, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory August 7, 08:33pm until August 8, 08:00pm
NOW until 8:00pm Sat
Heat Advisory
Tonight
Low: 71 °F
Severe
Thunderstorms
then Chance
Showers and
Patchy Fog
Saturday
High: 88 °F
Patchy Fog
then Chance
T-storms
Saturday Night
Low: 72 °F
Chance
T-storms then
Partly Cloudy
Sunday
High: 89 °F
Sunny
Sunday Night
Low: 70 °F
Mostly Clear
Monday
High: 90 °F
Sunny
Monday Night
Low: 72 °F
Chance
Showers
Tuesday
High: 86 °F
Mostly Sunny
then Chance
T-storms

Detailed Forecast

Tonight

Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 2am. Some of the storms could be severe and produce heavy rainfall. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 71. Southwest wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

A chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, increasing clouds, with a high near 88. Southwest wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night

A chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 72. Southwest wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

Sunny, with a high near 89. West wind 5 to 10 mph.

Sunday Night

Mostly clear, with a low around 70. West wind around 5 mph becoming calm.

Monday

Sunny, with a high near 90.

Monday Night

A chance of showers before 2am. Partly cloudy, with a low around 72. Chance of precipitation is 30%.

Tuesday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 50%.

Tuesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 50%.