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

Hazardous Weather Conditions

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Fair

81°F

27°C

Humidity 79%
Wind Speed SE 3 mph
Barometer 30.10 in (1019.3 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 2 Jul 7:53 am EDT
Extended Forecast for

Chambersburg PA

Heat Advisory July 3, 08:00pm until July 4, 08:00pm
Extreme Heat Warning July 2, 08:54am until July 3, 08:00pm
Click here for hazard details and duration
Heat Advisory
Extreme Heat Warning
  •  
    Extreme Heat Warning July 2, 08:54am until July 3, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Today

    High: 102 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 77. Light and variable wind.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny and hot, with a high near 101. Heat index values as high as 109. Calm wind becoming west around 6 mph in the afternoon.

    High: 101 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 76. Light and variable wind.

    Low: 76 °F

    Mostly Clear

  • Independence Day

    Independence Day: A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 98. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 20%.

    High: 98 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 73. 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

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Showers and thunderstorms likely after 2pm. Partly sunny and hot, with a high near 94. Chance of precipitation is 70%.

    High: 94 °F

    Mostly Sunny
    then T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 70%.

    Low: 70 °F

    T-storms
    Likely then
    Showers
    Likely

Detailed Forecast

Today
Sunny and hot, with a high near 102. Heat index values as high as 109. Calm wind becoming west around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 77. Light and variable wind.
Friday
Mostly sunny and hot, with a high near 101. Heat index values as high as 109. Calm wind becoming west around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 76. Light and variable wind.
Independence Day
A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 98. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and thunderstorms likely after 2pm. Partly sunny and hot, with a high near 94. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 70%.
Monday
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 88. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 67. Chance of precipitation is 80%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chambersburg PA
 39.93°N 77.66°W (Elev. 617 ft)
Last Update:
8:06 am EDT Jul 2, 2026
Forecast Valid:
8am EDT Jul 2, 2026-6pm EDT Jul 8, 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