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.

Overcast

48°F

9°C

Humidity 68%
Wind Speed S 15 G 28 mph
Barometer 30.12 in (1021.4 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 9 Jan 9:53 am EST
Extended Forecast for

3 Miles SSW Mercersburg PA

  • Today

    Today: Rain likely, mainly between 1pm and 5pm. Cloudy, with a high near 55. South wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Slight Chance
    Rain then
    Rain Likely

  • Tonight

    Tonight: A slight chance of rain between 7pm and 8pm. Cloudy, with a low around 42. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 42 °F

    Slight Chance
    Rain then
    Cloudy

  • Saturday

    Saturday: Rain. High near 45. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 45 °F

    Rain

  • Saturday Night

    Saturday Night: A chance of rain before 1am. Patchy fog before 7pm. Otherwise, mostly cloudy, with a low around 37. Calm wind becoming west 5 to 8 mph after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Chance Rain
    and Patchy
    Fog

  • Sunday

    Sunday: A slight chance of rain showers before 4pm, then a slight chance of snow showers. Mostly sunny, with a high near 43. West wind 8 to 17 mph, with gusts as high as 41 mph. Chance of precipitation is 20%.

    High: 43 °F

    Slight Chance
    Showers then
    Slight Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

Detailed Forecast

Today
Rain likely, mainly between 1pm and 5pm. Cloudy, with a high near 55. South wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A slight chance of rain between 7pm and 8pm. Cloudy, with a low around 42. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Saturday
Rain. High near 45. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
A chance of rain before 1am. Patchy fog before 7pm. Otherwise, mostly cloudy, with a low around 37. Calm wind becoming west 5 to 8 mph after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A slight chance of rain showers before 4pm, then a slight chance of snow showers. Mostly sunny, with a high near 43. West wind 8 to 17 mph, with gusts as high as 41 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Mostly sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 39.
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Forecast Area
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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:
7:34 am EST Jan 9, 2026
Forecast Valid:
10am EST Jan 9, 2026-6pm EST Jan 15, 2026
 
Forecast Discussion
 
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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