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

44°F

7°C

Humidity 40%
Wind Speed S 10 mph
Barometer 30.02 in (1018.1 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 13 Jan 10:53 am EST
Extended Forecast for

3 Miles SSW Mercersburg PA

  • Today

    Today: Partly sunny, with a high near 50. South wind around 6 mph.

    High: 50 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. Southwest wind 3 to 6 mph.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 1pm. Cloudy, with a high near 49. Southwest wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: A chance of rain, mixing with snow after 10pm, then gradually ending. Cloudy, then gradually becoming partly cloudy, with a low around 21. Northwest wind 5 to 13 mph, with gusts as high as 34 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 21 °F

    Chance
    Rain/Snow

  • Thursday

    Thursday: Partly sunny, with a high near 28. Northwest wind around 15 mph, with gusts as high as 34 mph.

    High: 28 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of snow showers after 1pm. Partly sunny, with a high near 41. Chance of precipitation is 30%.

    High: 41 °F

    Mostly Sunny
    then Chance
    Snow Showers

Detailed Forecast

Today
Partly sunny, with a high near 50. South wind around 6 mph.
Tonight
Mostly cloudy, with a low around 39. Southwest wind 3 to 6 mph.
Wednesday
Rain likely, mainly after 1pm. Cloudy, with a high near 49. Southwest wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A chance of rain, mixing with snow after 10pm, then gradually ending. Cloudy, then gradually becoming partly cloudy, with a low around 21. Northwest wind 5 to 13 mph, with gusts as high as 34 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Thursday
Partly sunny, with a high near 28. Northwest wind around 15 mph, with gusts as high as 34 mph.
Thursday Night
Partly cloudy, with a low around 15.
Friday
Mostly sunny, with a high near 33.
Friday Night
Partly cloudy, with a low around 24.
Saturday
A chance of snow showers after 1pm. Partly sunny, with a high near 41. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
Partly sunny, with a high near 31.
Sunday Night
Mostly cloudy, with a low around 16.
M.L.King Day
Mostly sunny, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Mercersburg PA
 39.78°N 77.94°W (Elev. 551 ft)
Last Update:
8:31 am EST Jan 13, 2026
Forecast Valid:
11am EST Jan 13, 2026-6pm EST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation