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

Dangerous Heat and Humidity Through Saturday

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

Hazardous Weather Conditions

Current conditions at

Reading, Reading Regional Airport (KRDG)

Lat: 40.37°NLon: 75.96°WElev: 344ft.

Fair

78°F

26°C

Humidity 76%
Wind Speed Calm
Barometer 30.02 in (1016.5 mb)
Dewpoint 70°F (21°C)
Visibility 8.00 mi
Heat Index80°F (27°C)
Last update 3 Jul 5:54 am EDT
Extended Forecast for

Mount Penn PA

Extreme Heat Warning July 3, 06:27am until July 4, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 3, 06:27am until July 4, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • Today

    High: 102 °F

    Hot

  • Tonight

    Tonight: Isolated showers and thunderstorms before midnight. Mostly clear, with a low around 77. West wind around 5 mph. Chance of precipitation is 20%.

    Low: 77 °F

    Isolated
    T-storms then
    Partly Cloudy

  • Independence Day

    Independence Day: Isolated showers and thunderstorms after 2pm. Increasing clouds and hot, with a high near 97. Heat index values as high as 103. West wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 97 °F

    Sunny then
    Isolated
    T-storms

  • Saturday Night

    Saturday Night: Scattered showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 73. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Scattered
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 89. Northeast wind around 5 mph becoming east in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 69. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 69 °F

    Showers

  • Monday

    Monday: Showers likely, then showers and possibly a thunderstorm after 8am. High near 83. Chance of precipitation is 80%.

    High: 83 °F

    Showers
    Likely then
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 67. Chance of precipitation is 80%.

    Low: 67 °F

    T-storms then
    Showers

Detailed Forecast

Today
Sunny and hot, with a high near 102. Heat index values as high as 110. West wind 5 to 10 mph.
Tonight
Isolated showers and thunderstorms before midnight. Mostly clear, with a low around 77. West wind around 5 mph. Chance of precipitation is 20%.
Independence Day
Isolated showers and thunderstorms after 2pm. Increasing clouds and hot, with a high near 97. Heat index values as high as 103. West wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday Night
Scattered showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 73. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 89. Northeast wind around 5 mph becoming east in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and possibly a thunderstorm. Low around 69. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Monday
Showers likely, then showers and possibly a thunderstorm after 8am. High near 83. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 67. Chance of precipitation is 80%.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 30%.
Tuesday Night
A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Penn PA
 40.33°N 75.9°W (Elev. 400 ft)
Last Update:
4:08 am EDT Jul 3, 2026
Forecast Valid:
6am EDT Jul 3, 2026-6pm EDT Jul 9, 2026
 
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