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.

Partly Cloudy

77°F

25°C

Humidity 69%
Wind Speed SE 7 mph
Barometer 30.13 in (1020.6 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 16 Aug 12:53 am EDT
Extended Forecast for

Chambersburg PA

Flood Watch August 16, 06:00am until August 16, 10:00pm
Click here for hazard details and duration
Flood Watch

  • Overnight

    Overnight: Mostly cloudy, with a low around 71. Light southeast wind.

    Low: 71 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 81. South wind 6 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 81 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 2am, then a chance of showers. Low around 70. Light south wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 70 °F

    Showers

  • Monday

    Monday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Northwest wind 3 to 7 mph. 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

    Partly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. Light northwest wind. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 71. Light southeast wind.
Sunday
Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 81. South wind 6 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
Showers and thunderstorms before 2am, then a chance of showers. Low around 70. Light south wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Northwest wind 3 to 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. Light northwest wind. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 86.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Partly sunny, with a high near 81.
Friday Night
Mostly cloudy, with a low around 61.
Saturday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 30%.
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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:
9:46 pm EDT Aug 15, 2026
Forecast Valid:
12am EDT Aug 16, 2026-6pm EDT Aug 22, 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