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

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Overcast

29°F

-2°C

Humidity 85%
Wind Speed Calm
Barometer 29.99 in (1017.4 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 5 Dec 9:53 pm EST
Extended Forecast for

3 Miles SSW Mercersburg PA

  • Tonight

    Tonight: Cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 42. Calm wind becoming southwest around 6 mph.

    High: 42 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 27. Calm wind.

    Low: 27 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 42. Calm wind becoming south around 5 mph.

    High: 42 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 25. Calm wind becoming northwest 5 to 7 mph after midnight.

    Low: 25 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 25. Calm wind.
Saturday
Mostly cloudy, with a high near 42. Calm wind becoming southwest around 6 mph.
Saturday Night
Increasing clouds, with a low around 27. Calm wind.
Sunday
Mostly cloudy, with a high near 42. Calm wind becoming south around 5 mph.
Sunday Night
Mostly cloudy, with a low around 25. Calm wind becoming northwest 5 to 7 mph after midnight.
Monday
Mostly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Partly sunny, with a high near 38.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
A chance of showers after 1pm. Mostly cloudy, with a high near 46. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
Thursday
A chance of showers. Partly sunny, with a high near 42. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
Partly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Mercersburg PA
 39.78°N 77.94°W (Elev. 551 ft)
Last Update:
8:36 pm EST Dec 5, 2025
Forecast Valid:
10pm EST Dec 5, 2025-6pm EST Dec 12, 2025
 
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