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

55°F

13°C

Humidity 34%
Wind Speed NW 20 G 29 mph
Barometer 30.16 in (1022.2 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 6 Nov 11:53 am EST
Extended Forecast for

Mercersburg PA

  • This Afternoon

    This Afternoon: Sunny, with a high near 55. Northwest wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 55 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers, mainly after 5pm. Increasing clouds, with a high near 61. South wind 6 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    High: 61 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly between 7pm and 1am. Cloudy, then gradually becoming partly cloudy, with a low around 47. South wind 5 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 67. West wind 3 to 8 mph.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 1am. Mostly cloudy, with a low around 45. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers. Partly sunny, with a high near 64. Chance of precipitation is 50%.

    High: 64 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 55. Northwest wind 7 to 11 mph, with gusts as high as 22 mph.
Tonight
Partly cloudy, with a low around 32. Calm wind.
Friday
A chance of showers, mainly after 5pm. Increasing clouds, with a high near 61. South wind 6 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Friday Night
Showers likely, mainly between 7pm and 1am. Cloudy, then gradually becoming partly cloudy, with a low around 47. South wind 5 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 67. West wind 3 to 8 mph.
Saturday Night
A chance of showers after 1am. Mostly cloudy, with a low around 45. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A chance of showers. Partly sunny, with a high near 64. Chance of precipitation is 50%.
Sunday Night
Mostly cloudy, with a low around 33.
Monday
Partly sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 28.
Veterans Day
Mostly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mercersburg PA
 39.82°N 77.9°W (Elev. 600 ft)
Last Update:
12:04 pm EST Nov 6, 2025
Forecast Valid:
12pm EST Nov 6, 2025-6pm EST Nov 12, 2025
 
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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