Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Hazardous Weather Conditions

Flood Watch in effect from August 27, 12:00 PM EDT until August 28, 04:00 AM EDT

Current conditions at

Philadelphia - Wings Field Airport (KLOM)

Lat: 40.14°NLon: 75.27°WElev: 282ft.

Mostly Cloudy

71°F

22°C

Humidity	83%
Wind Speed	SW 5 mph
Barometer	30.04 in
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Last update	27 Aug 2:55 am EDT

More Information:

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

Extended Forecast for

Berwyn PA

Flood Watch August 27, 12:00pm until August 28, 04:00am

Click here for hazard details and duration

Flood Watch

Overnight
Low: 69 °F
Mostly Cloudy
Thursday
High: 85 °F
Chance
T-storms then
Showers
Likely
Thursday Night
Low: 67 °F
Showers then
Chance
Showers
Friday
High: 84 °F
Chance
Showers then
Mostly Sunny
Friday Night
Low: 64 °F
Partly Cloudy
Saturday
High: 84 °F
Sunny
Saturday Night
Low: 64 °F
Mostly Clear
Sunday
High: 86 °F
Mostly Sunny
Sunday Night
Low: 69 °F
Partly Cloudy

Detailed Forecast

Overnight

Mostly cloudy, with a low around 69. South wind around 5 mph.

Thursday

A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 85. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday Night

Showers and thunderstorms before 2am, then a slight chance of showers after 4am. Low around 67. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Friday

A chance of showers, mainly before 7am. Mostly sunny, with a high near 84. Calm wind becoming northwest around 5 mph in the morning. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

Partly cloudy, with a low around 64. Calm wind becoming north around 5 mph after midnight.

Saturday

Sunny, with a high near 84.

Saturday Night

Mostly clear, with a low around 64.

Sunday

Mostly sunny, with a high near 86.

Sunday Night

Partly cloudy, with a low around 69.

Monday

Mostly sunny, with a high near 88.