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

37°F

3°C

Humidity 42%
Wind Speed NW 13 mph
Barometer 30.09 in (1020.3 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 12 Mar 8:53 pm EDT
Extended Forecast for

3 Miles N Mercersburg PA

  • Tonight

    Tonight: Mostly clear, with a low around 29. Northwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 22 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 54. Breezy, with a south wind 5 to 10 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 54 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 35. West wind 9 to 13 mph, with gusts as high as 32 mph.

    Low: 35 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 52. West wind 7 to 9 mph, with gusts as high as 20 mph.

    High: 52 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain likely, mainly after 2am. Cloudy, with a low around 51. Chance of precipitation is 70%.

    Low: 51 °F

    Chance Rain
    then Rain
    Likely

  • Monday

    Monday: Rain. High near 66. Chance of precipitation is 90%.

    High: 66 °F

    Rain

  • Monday Night

    Monday Night: A chance of rain and snow showers before 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.

    Low: 27 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 29. Northwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 22 mph.
Friday
Partly sunny, with a high near 54. Breezy, with a south wind 5 to 10 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 39 mph.
Friday Night
Mostly clear, with a low around 35. West wind 9 to 13 mph, with gusts as high as 32 mph.
Saturday
Sunny, with a high near 52. West wind 7 to 9 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 36. Calm wind.
Sunday
Mostly cloudy, with a high near 56.
Sunday Night
Rain likely, mainly after 2am. Cloudy, with a low around 51. Chance of precipitation is 70%.
Monday
Rain. High near 66. Chance of precipitation is 90%.
Monday Night
A chance of rain and snow showers before 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 34.
Tuesday Night
Partly cloudy, with a low around 22.
Wednesday
Mostly sunny, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
Partly sunny, with a high near 45.
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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:
8:41 pm EDT Mar 12, 2026
Forecast Valid:
9pm EDT Mar 12, 2026-6pm EDT Mar 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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