National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 - Wings Field Airport (KLOM)

Lat: 40.14°NLon: 75.27°WElev: 282ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

King of Prussia PA

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

  • Tonight

    Tonight: Partly cloudy, with a low around 66. West wind 5 to 10 mph.

    Low: 66 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 89. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 89 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 72. Southwest wind 5 to 10 mph.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 95. Heat index values as high as 100. West wind 5 to 10 mph.

    High: 95 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77. West wind around 5 mph.

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear

  • Tuesday

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

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 66. West wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 89. Light southwest wind increasing to 5 to 10 mph in the morning.
Saturday Night
Mostly clear, with a low around 72. Southwest wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 95. Heat index values as high as 100. West wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 77. West wind around 5 mph.
Monday
Sunny and hot, with a high near 99.
Monday Night
Mostly clear, with a low around 78.
Tuesday
Sunny and hot, with a high near 98.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny, with a high near 96.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
King of Prussia PA
 40.09°N 75.36°W (Elev. 200 ft)
Last Update:
4:11 pm EDT Jun 20, 2025
Forecast Valid:
7pm EDT Jun 20, 2025-6pm EDT Jun 27, 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