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.

Fog/Mist

68°F

20°C

Humidity 100%
Wind Speed NW 3 mph
Barometer 30.05 in (1018.1 mb)
Dewpoint 68°F (20°C)
Visibility 2.50 mi
Last update 29 Jun 4:53 am EDT
Extended Forecast for

Chambersburg PA

Extreme Heat Watch July 1, 12:00pm until July 3, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Today

    Today: A chance of showers and thunderstorms, mainly before 3pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 87. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 91. South wind 5 to 8 mph.

    High: 91 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 72. South wind around 5 mph.

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. Calm wind becoming west around 6 mph in the afternoon.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

  • Thursday Night

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

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 103.

    High: 103 °F

    Hot

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly before 3pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 87. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Mostly clear, with a low around 68. Calm wind.
Tuesday
Mostly sunny, with a high near 91. South wind 5 to 8 mph.
Tuesday Night
Mostly clear, with a low around 72. South wind around 5 mph.
Wednesday
Sunny and hot, with a high near 99. Calm wind becoming west around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
Sunny and hot, with a high near 100.
Thursday Night
Mostly clear, with a low around 77.
Friday
Sunny and hot, with a high near 103.
Friday Night
Partly cloudy, with a low around 76.
Independence Day
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 98. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95. 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:
3:57 am EDT Jun 29, 2026
Forecast Valid:
5am EDT Jun 29, 2026-6pm EDT Jul 5, 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