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

75°F

24°C

Humidity 74%
Wind Speed SE 5 mph
Barometer 30.13 in (1020.7 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 30 Jun 12:53 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

  • Overnight

    Overnight: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91. South wind 3 to 8 mph.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71. South wind 3 to 6 mph.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: Isolated showers and thunderstorms after 1pm. Sunny and hot, with a high near 98. Heat index values as high as 109. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 98 °F

    Sunny then
    Isolated
    T-storms

  • Wednesday Night

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

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 102.

    High: 102 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 67. Calm wind.
Tuesday
Sunny, with a high near 91. South wind 3 to 8 mph.
Tuesday Night
Mostly clear, with a low around 71. South wind 3 to 6 mph.
Wednesday
Isolated showers and thunderstorms after 1pm. Sunny and hot, with a high near 98. Heat index values as high as 109. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 75. Calm wind.
Thursday
Sunny and hot, with a high near 101.
Thursday Night
Mostly clear, with a low around 76.
Friday
Sunny and hot, with a high near 102.
Friday Night
Partly cloudy, with a low around 74.
Independence Day
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 99. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny and hot, with a high near 96. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms. Partly sunny and hot, with a high near 92. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chambersburg PA
 39.93°N 77.66°W (Elev. 617 ft)
Last Update:
1:16 am EDT Jun 30, 2026
Forecast Valid:
2am EDT Jun 30, 2026-6pm EDT Jul 6, 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