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.

Fair

27°F

-3°C

Humidity 69%
Wind Speed N 5 mph
Barometer 30.21 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 4 Jan 9:53 pm EST
Extended Forecast for

3 Miles N Mercersburg PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 42. Calm wind becoming south around 6 mph.

    High: 42 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain after 1pm. Mostly cloudy, with a high near 49. Calm wind. Chance of precipitation is 20%.

    High: 49 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: A slight chance of rain before 1am. Mostly cloudy, with a low around 39. Light and variable wind. Chance of precipitation is 20%.

    Low: 39 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of rain. Mostly cloudy, with a low around 44. Chance of precipitation is 40%.

    Low: 44 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 23. Calm wind.
Monday
Partly sunny, with a high near 42. Calm wind becoming south around 6 mph.
Monday Night
Mostly cloudy, with a low around 30. Calm wind.
Tuesday
A slight chance of rain after 1pm. Mostly cloudy, with a high near 49. Calm wind. Chance of precipitation is 20%.
Tuesday Night
A slight chance of rain before 1am. Mostly cloudy, with a low around 39. Light and variable wind. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 53.
Wednesday Night
Partly cloudy, with a low around 34.
Thursday
Mostly sunny, with a high near 54.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 44. Chance of precipitation is 40%.
Friday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 44. Chance of precipitation is 50%.
Saturday
A chance of rain. Partly sunny, with a high near 54. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Mercersburg PA
 39.87°N 77.9°W (Elev. 564 ft)
Last Update:
10:06 pm EST Jan 4, 2026
Forecast Valid:
10pm EST Jan 4, 2026-6pm EST Jan 11, 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