Dangerous Heat and Humidity Today through Saturday

Dangerously hot and humid conditions are expected to build starting today through Saturday. Additionally, there will be a threat of thunderstorms on some of the days. View this briefing for details. Read More >

Hazardous Weather Conditions

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Partly Cloudy

91°F

33°C

Humidity	61%
Wind Speed	S 9 mph
Barometer	29.96 in (1014.4 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	103°F (39°C)
Last update	1 Jul 7:54 pm EDT

More Information:

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

Extended Forecast for

Wallingford PA

Extreme Heat Warning July 1, 08:04pm until July 4, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning July 1, 08:04pm until July 4, 08:00pm
NOW until 8:00pm Sat
Extreme Heat Warning
Tonight
Low: 76 °F
Severe
Thunderstorms
then Mostly
Clear
Thursday
High: 103 °F
Hot
Thursday Night
Low: 81 °F
Clear
Friday
High: 102 °F
Hot
Friday Night
Low: 80 °F
Partly Cloudy
Independence Day
High: 100 °F
Sunny then
Chance
T-storms
Saturday Night
Low: 75 °F
Chance
T-storms
Sunday
High: 96 °F
Mostly Sunny
then Showers
Likely

Detailed Forecast

Tonight

Isolated showers and thunderstorms before 10pm. Some of the storms could be severe. Partly cloudy, with a low around 76. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Thursday

Sunny and hot, with a high near 103. Heat index values as high as 110. West wind 5 to 10 mph, with gusts as high as 20 mph.

Thursday Night

Clear, with a low around 81. Southwest wind around 5 mph.

Friday

Sunny and hot, with a high near 102. Heat index values as high as 108. West wind 5 to 10 mph.

Friday Night

Partly cloudy, with a low around 80. West wind 5 to 10 mph.

Independence Day

A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 100. 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 before 2am. Mostly cloudy, with a low around 75. Chance of precipitation is 40%.

Sunday

Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 96. Chance of precipitation is 60%.

Sunday Night

Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 72. Chance of precipitation is 70%.

Monday

A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 60%.

Monday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

Tuesday

Partly sunny, with a high near 87.