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Briefing for Late June Heat Wave

An early season heat wave will bring dangerously hot and humid conditions across most of the region beginning Sunday through Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Partly Cloudy

75°F

24°C

Humidity 82%
Wind Speed SW 10 mph
Barometer 30.09 in (1019.0 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 22 Jun 5:54 am EDT
Extended Forecast for

Folsom PA

Extreme Heat Warning June 22, 08:00am until June 25, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Today

    Today: Mostly sunny, with a high near 95. Heat index values as high as 101. West wind 5 to 10 mph.

    High: 95 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 79. West wind around 5 mph. Chance of precipitation is 20%.

    Low: 79 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 100. Heat index values as high as 109. Northwest wind around 5 mph.

    High: 100 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 79. West wind around 5 mph becoming calm in the evening.

    Low: 79 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Northwest wind around 5 mph.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 80.

    Low: 80 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 40%.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 95. Heat index values as high as 101. West wind 5 to 10 mph.
Tonight
A slight chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 79. West wind around 5 mph. Chance of precipitation is 20%.
Monday
Sunny and hot, with a high near 100. Heat index values as high as 109. Northwest wind around 5 mph.
Monday Night
Mostly clear, with a low around 79. West wind around 5 mph becoming calm in the evening.
Tuesday
Sunny and hot, with a high near 101. Northwest wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 80.
Wednesday
Sunny and hot, with a high near 98.
Wednesday Night
Partly cloudy, with a low around 75.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Folsom PA
 39.89°N 75.34°W (Elev. 98 ft)
Last Update:
6:45 am EDT Jun 22, 2025
Forecast Valid:
6am EDT Jun 22, 2025-6pm EDT Jun 28, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation