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

25°F

-4°C

Humidity 54%
Wind Speed W 17 G 28 mph
Barometer 29.91 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 30 Dec 8:53 pm EST
Extended Forecast for

3 Miles N Mercersburg PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 23. West wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 23 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 36. West wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 36 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of snow showers between 10pm and 4am. The snow could be heavy at times. Mostly cloudy, with a low around 22. Southwest wind 7 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.

    Low: 22 °F

    Heavy Snow

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 29. West wind 11 to 13 mph, with gusts as high as 28 mph.

    High: 29 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 18. West wind around 5 mph becoming calm in the evening.

    Low: 18 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 23. West wind 8 to 10 mph, with gusts as high as 21 mph.
Wednesday
Mostly cloudy, with a high near 36. West wind 7 to 11 mph, with gusts as high as 22 mph.
Wednesday Night
A chance of snow showers between 10pm and 4am. The snow could be heavy at times. Mostly cloudy, with a low around 22. Southwest wind 7 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
New Year's Day
Mostly sunny, with a high near 29. West wind 11 to 13 mph, with gusts as high as 28 mph.
Thursday Night
Mostly clear, with a low around 18. West wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 38.
Friday Night
Mostly cloudy, with a low around 22.
Saturday
Partly sunny, with a high near 36.
Saturday Night
Partly cloudy, with a low around 20.
Sunday
Mostly sunny, with a high near 38.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Mostly cloudy, with a high near 41.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Partly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Mercersburg PA
 39.87°N 77.9°W (Elev. 564 ft)
Last Update:
7:30 pm EST Dec 30, 2025
Forecast Valid:
9pm EST Dec 30, 2025-6pm EST Jan 6, 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