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.

Light Rain Fog/Mist

45°F

7°C

Humidity 97%
Wind Speed NW 3 mph
Barometer 30.22 in (1024.7 mb)
Dewpoint 44°F (7°C)
Visibility 4.00 mi
Last update 4 Mar 2:53 pm EST
Extended Forecast for

3 Miles SSW Mercersburg PA

  • This Afternoon

    This Afternoon: A chance of rain, mainly before 4pm. Patchy fog after 4pm. Otherwise, mostly cloudy, with a high near 48. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Chance Rain
    and Patchy
    Fog

  • Tonight

    Tonight: Rain, mainly after 1am. Patchy fog after 8pm. Low around 45. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Chance Rain
    and Patchy
    Fog then Rain
    and Areas Fog

  • Thursday

    Thursday: Rain, with thunderstorms also possible after 4pm. Patchy fog before noon. High near 60. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 60 °F

    Rain and
    Patchy Fog

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm. Low around 49. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Rain

  • Friday

    Friday: A chance of showers. Mostly cloudy, with a high near 62. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Saturday

    Saturday: Showers likely after 1pm. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.

    High: 75 °F

    Mostly Cloudy
    then Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers before 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 50%.

    Low: 52 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A chance of rain, mainly before 4pm. Patchy fog after 4pm. Otherwise, mostly cloudy, with a high near 48. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain, mainly after 1am. Patchy fog after 8pm. Low around 45. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain, with thunderstorms also possible after 4pm. Patchy fog before noon. High near 60. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Rain and possibly a thunderstorm. Low around 49. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A chance of showers. Mostly cloudy, with a high near 62. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
Showers likely after 1pm. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.
Saturday Night
A chance of showers before 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 50%.
Sunday
Partly sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Sunny, with a high near 68.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 77.
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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:
2:21 pm EST Mar 4, 2026
Forecast Valid:
3pm EST Mar 4, 2026-6pm EDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation