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.

A Few Clouds

54°F

12°C

Humidity 42%
Wind Speed S 12 mph
Barometer 29.98 in (1016.2 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 26 Mar 5:53 am EDT
Extended Forecast for

3 Miles SSW Mercersburg PA

  • Today

    Today: A slight chance of rain after 1pm. Partly sunny, with a high near 78. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

    High: 78 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tonight

    Tonight: A chance of rain and thunderstorms before midnight, then rain likely and possibly a thunderstorm between midnight and 2am, then rain after 2am. Low around 50. Southwest wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Chance
    T-storms then
    Rain

  • Friday

    Friday: Rain, mainly before 2pm. Temperature falling to around 50 by 5pm. North wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 55 °F⇓

    Rain

  • Friday Night

    Friday Night: A chance of rain before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 31. Calm wind becoming northwest 5 to 9 mph in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Chance Rain
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 46. Northwest wind around 9 mph, with gusts as high as 20 mph.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: A chance of rain after 2pm. Partly sunny, with a high near 64. Chance of precipitation is 30%.

    High: 64 °F

    Partly Sunny
    then Chance
    Rain

Detailed Forecast

Today
A slight chance of rain after 1pm. Partly sunny, with a high near 78. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Tonight
A chance of rain and thunderstorms before midnight, then rain likely and possibly a thunderstorm between midnight and 2am, then rain after 2am. Low around 50. Southwest wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Rain, mainly before 2pm. Temperature falling to around 50 by 5pm. North wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A chance of rain before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 31. Calm wind becoming northwest 5 to 9 mph in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 46. Northwest wind around 9 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 30.
Sunday
Sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 41.
Monday
A chance of rain after 2pm. Partly sunny, with a high near 64. Chance of precipitation is 30%.
Monday Night
A chance of rain. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 68. Chance of precipitation is 50%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 52. Chance of precipitation is 50%.
Wednesday
A chance of rain. Partly sunny, with a high near 74. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Mercersburg PA
 39.78°N 77.94°W (Elev. 551 ft)
Last Update:
6:04 am EDT Mar 26, 2026
Forecast Valid:
6am EDT Mar 26, 2026-6pm EDT Apr 1, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation