Dangerous Heat in the Northeast and Northwest U.S.; Areas of Excessive Rainfall In the Ohio Valley and Southwest

Dangerous heat will continue to impact portions of the Northwest and Northeast U.S. through this evening. Monsoon showers and thunderstorms may result in flash flooding and debris flows from the Four Corners region into the Great Basin this week. A slow moving cold front will bring heavy thunderstorms which may produce excessive rainfall over the Ohio Valley and Mid-Atlantic through Wednesday. Read More >

Hazardous Weather Conditions

En Español

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Partly Cloudy

97°F

36°C

Humidity	45%
Wind Speed	W 16 mph
Barometer	29.91 in (1012.6 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	106°F (41°C)
Last update	9 Aug 3:54 pm EDT

More Information:

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

Extended Forecast for

Philadelphia PA

Excessive Heat Warning until August 9, 08:00pm

Click here for hazard details and duration

Excessive Heat Warning

Excessive Heat Warning until August 9, 08:00pm

NOW until
8:00pm Tue

Excessive Heat Warning
This
Afternoon

Chance
T-storms
High: 96 °F
Tonight

Chance
T-storms
Low: 76 °F
Wednesday

Slight Chance
T-storms then
T-storms
Likely
High: 88 °F
Wednesday
Night

T-storms
Likely
Low: 72 °F
Thursday

Slight Chance
Showers
High: 87 °F
Thursday
Night

Partly Cloudy
Low: 68 °F
Friday

Sunny
High: 83 °F
Friday
Night

Clear
Low: 63 °F

Detailed Forecast

This Afternoon

A chance of showers and thunderstorms. Partly sunny, with a high near 96. Heat index values as high as 103. West wind 10 to 15 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 76. West wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 88. North wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 72. Southeast wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Thursday

A slight chance of showers before 2pm. Partly sunny, with a high near 87. Northwest wind around 5 mph. Chance of precipitation is 20%.

Thursday Night

Partly cloudy, with a low around 68.

Friday

Sunny, with a high near 83.

Friday Night

Clear, with a low around 63.

Saturday

Sunny, with a high near 83.

Saturday Night

Mostly clear, with a low around 63.