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 45%
Wind Speed S 13 mph
Barometer 30.03 in (1019.0 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 9 Dec 2:53 pm EST
Extended Forecast for

3 Miles N Mercersburg PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. South wind 3 to 6 mph.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Snow and freezing rain likely before 10am, then rain likely. Cloudy, then gradually becoming mostly sunny, with a high near 46. South wind 6 to 9 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. Little or no snow accumulation expected.

    High: 46 °F

    Wintry Mix
    Likely then
    Rain Likely

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28. West wind 7 to 10 mph, with gusts as high as 26 mph.

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 34. West wind 10 to 13 mph, with gusts as high as 30 mph.

    High: 34 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25. West wind around 7 mph.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: A chance of snow, mainly after 1pm. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.

    High: 36 °F

    Chance Snow

  • Friday Night

    Friday Night: A chance of snow before 1am. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.

    Low: 26 °F

    Chance Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.

    Low: 26 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 27. South wind 3 to 6 mph.
Wednesday
Snow and freezing rain likely before 10am, then rain likely. Cloudy, then gradually becoming mostly sunny, with a high near 46. South wind 6 to 9 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. Little or no snow accumulation expected.
Wednesday Night
Mostly cloudy, with a low around 28. West wind 7 to 10 mph, with gusts as high as 26 mph.
Thursday
Mostly sunny, with a high near 34. West wind 10 to 13 mph, with gusts as high as 30 mph.
Thursday Night
Partly cloudy, with a low around 25. West wind around 7 mph.
Friday
A chance of snow, mainly after 1pm. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
Friday Night
A chance of snow before 1am. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.
Saturday
Mostly cloudy, with a high near 39.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.
Sunday
Partly sunny, with a high near 33.
Sunday Night
Partly cloudy, with a low around 15.
Monday
Mostly sunny, with a high near 30.
Monday Night
Mostly cloudy, with a low around 19.
Tuesday
Mostly sunny, with a high near 35.
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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:
2:21 pm EST Dec 9, 2025
Forecast Valid:
3pm EST Dec 9, 2025-6pm EST Dec 16, 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