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

64°F

18°C

Humidity 84%
Wind Speed NE 7 mph
Barometer 29.61 in (1003.5 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 22 Mar 10:53 pm EDT
Extended Forecast for

3 Miles N Mercersburg PA

  • Tonight

    Tonight: Showers and thunderstorms. Some of the storms could be severe. Low around 47. Northeast wind 5 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Severe
    Thunderstorms

  • Monday

    Monday: A chance of showers, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 53. Northwest wind 6 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29. Northwest wind 3 to 8 mph. Winds could gust as high as 22 mph.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 49. Calm wind.

    High: 49 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 64.

    High: 64 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 70%.

    Low: 46 °F

    Showers
    Likely

Detailed Forecast

Tonight
Showers and thunderstorms. Some of the storms could be severe. Low around 47. Northeast wind 5 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A chance of showers, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 53. Northwest wind 6 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Partly cloudy, with a low around 29. Northwest wind 3 to 8 mph. Winds could gust as high as 22 mph.
Tuesday
Sunny, with a high near 49. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 34. Calm wind.
Wednesday
Partly sunny, with a high near 59.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
Mostly cloudy, with a high near 64.
Thursday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 70%.
Friday
Showers likely, mainly before 8am. Partly sunny, with a high near 56. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Sunny, with a high near 47.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 54.
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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:
11:01 pm EDT Mar 22, 2026
Forecast Valid:
11pm EDT Mar 22, 2026-6pm EDT Mar 29, 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