National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Fair

72°F

22°C

Humidity 46%
Wind Speed S 9 mph
Barometer 29.73 in (1007.6 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 22 Mar 12:53 pm EDT
Extended Forecast for

3 Miles N Mercersburg PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 81. Southwest wind 7 to 9 mph, with gusts as high as 20 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then a chance of showers. Some of the storms could be severe. Low around 45. North wind 3 to 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Severe
    Thunderstorms

  • Monday

    Monday: Cloudy through mid morning, then gradual clearing, with a high near 53. Northwest wind around 10 mph, with gusts as high as 24 mph.

    High: 53 °F

    Gradual
    Clearing

  • Monday Night

    Monday Night: Mostly clear, with a low around 31. Northwest wind around 6 mph becoming calm after midnight.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 50. Light and variable wind.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.

    Low: 42 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.

    High: 64 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 81. Southwest wind 7 to 9 mph, with gusts as high as 20 mph.
Tonight
Showers and thunderstorms before 4am, then a chance of showers. Some of the storms could be severe. Low around 45. North wind 3 to 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Cloudy through mid morning, then gradual clearing, with a high near 53. Northwest wind around 10 mph, with gusts as high as 24 mph.
Monday Night
Mostly clear, with a low around 31. Northwest wind around 6 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 50. Light and variable wind.
Tuesday Night
Partly cloudy, with a low around 35.
Wednesday
Partly sunny, with a high near 58.
Wednesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.
Thursday
A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.
Thursday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Friday
A chance of showers. Partly sunny, with a high near 52. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Sunny, with a high near 48.
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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:
8:05 am EDT Mar 22, 2026
Forecast Valid:
1pm EDT Mar 22, 2026-6pm EDT Mar 28, 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