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

76°F

24°C

Humidity 62%
Wind Speed SW 6 mph
Barometer 29.98 in (1015.5 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 14 Oct 10:53 am EDT
Extended Forecast for

South Mountain PA

  • This Afternoon

    This Afternoon: Isolated showers between 2pm and 5pm, then scattered showers and thunderstorms after 5pm. Partly sunny, with a high near 77. West wind around 8 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers and thunderstorms before 8pm, then isolated showers between 8pm and midnight. Mostly cloudy, with a low around 52. Northwest wind around 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Scattered
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers, mainly after 11am. Partly sunny, with a high near 58. Northeast wind 3 to 8 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly between 11pm and 2am. Cloudy, with a low around 52. South wind 5 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers before 8am, then showers likely after 2pm. Mostly cloudy, with a high near 72. South wind 11 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 72 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely before 8pm. Mostly cloudy, with a low around 40. Breezy. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Breezy.
    Showers
    Likely then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 32.

    Low: 32 °F

    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 55.

    High: 55 °F

    Frost then
    Sunny

Detailed Forecast

This Afternoon
Isolated showers between 2pm and 5pm, then scattered showers and thunderstorms after 5pm. Partly sunny, with a high near 77. West wind around 8 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Scattered showers and thunderstorms before 8pm, then isolated showers between 8pm and midnight. Mostly cloudy, with a low around 52. Northwest wind around 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, mainly after 11am. Partly sunny, with a high near 58. Northeast wind 3 to 8 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Showers likely, mainly between 11pm and 2am. Cloudy, with a low around 52. South wind 5 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of showers before 8am, then showers likely after 2pm. Mostly cloudy, with a high near 72. South wind 11 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers likely before 8pm. Mostly cloudy, with a low around 40. Breezy. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 48.
Saturday Night
Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 32.
Sunday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 36.
Monday
Sunny, with a high near 58.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Mostly sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Mountain PA
 39.83°N 77.5°W (Elev. 1867 ft)
Last Update:
8:06 am EDT Oct 14, 2026
Forecast Valid:
12pm EDT Oct 14, 2026-6pm EDT Oct 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation