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

38°F

3°C

Humidity 60%
Wind Speed NW 20 G 26 mph
Barometer 29.93 in (1014.4 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 12 Mar 12:53 pm EDT
Extended Forecast for

3 Miles NW Mercersburg PA

  • This Afternoon

    This Afternoon: Cloudy, then gradually becoming mostly sunny, with a high near 42. Northwest wind around 13 mph, with gusts as high as 30 mph.

    High: 42 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 29. Northwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 24 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 53. South wind 7 to 16 mph, with gusts as high as 43 mph.

    High: 53 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 34. West wind 14 to 18 mph, with gusts as high as 39 mph.

    Low: 34 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 50. West wind 7 to 9 mph, with gusts as high as 22 mph.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers likely after 2am. Cloudy, with a low around 49. Chance of precipitation is 60%.

    Low: 49 °F

    Cloudy then
    Showers
    Likely

  • Monday

    Monday: Showers. High near 61. Chance of precipitation is 80%.

    High: 61 °F

    Showers

Detailed Forecast

This Afternoon
Cloudy, then gradually becoming mostly sunny, with a high near 42. Northwest wind around 13 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 29. Northwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 24 mph.
Friday
Partly sunny, with a high near 53. South wind 7 to 16 mph, with gusts as high as 43 mph.
Friday Night
Partly cloudy, with a low around 34. West wind 14 to 18 mph, with gusts as high as 39 mph.
Saturday
Mostly sunny, with a high near 50. West wind 7 to 9 mph, with gusts as high as 22 mph.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Mostly cloudy, with a high near 55.
Sunday Night
Showers likely after 2am. Cloudy, with a low around 49. Chance of precipitation is 60%.
Monday
Showers. High near 61. Chance of precipitation is 80%.
Monday Night
Showers likely before 8pm. Mostly cloudy, with a low around 24. Chance of precipitation is 60%.
Tuesday
Partly sunny, with a high near 33.
Tuesday Night
Mostly clear, with a low around 20.
Wednesday
Mostly sunny, with a high near 38.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Mercersburg PA
 39.87°N 77.95°W (Elev. 997 ft)
Last Update:
11:51 am EDT Mar 12, 2026
Forecast Valid:
1pm EDT Mar 12, 2026-6pm EDT Mar 18, 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