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

44°F

7°C

Humidity 45%
Wind Speed Calm
Barometer 30.15 in (1022.4 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 18 Nov 1:53 pm EST
Extended Forecast for

6 Miles SW Mercersburg PA

  • This Afternoon

    This Afternoon: A slight chance of showers before 4pm, then a slight chance of showers after 5pm. Cloudy, with a high near 45. Light south wind. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Showers. Low around 38. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers before 7am. Mostly cloudy, with a high near 50. Light north wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy

  • Thursday

    Thursday: Cloudy, with a high near 50. Light southeast wind.

    High: 50 °F

    Cloudy

  • Thursday Night

    Thursday Night: Cloudy, with a low around 43.

    Low: 43 °F

    Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 50%.

    Low: 43 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers. Partly sunny, with a high near 53. Chance of precipitation is 40%.

    High: 53 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A slight chance of showers before 4pm, then a slight chance of showers after 5pm. Cloudy, with a high near 45. Light south wind. Chance of precipitation is 20%.
Tonight
Showers. Low around 38. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers before 7am. Mostly cloudy, with a high near 50. Light north wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 37. Calm wind.
Thursday
Cloudy, with a high near 50. Light southeast wind.
Thursday Night
Cloudy, with a low around 43.
Friday
Mostly cloudy, with a high near 59.
Friday Night
A chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 50%.
Saturday
A chance of showers. Partly sunny, with a high near 53. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Mostly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SW Mercersburg PA
 39.76°N 77.97°W (Elev. 646 ft)
Last Update:
12:56 pm EST Nov 18, 2025
Forecast Valid:
2pm EST Nov 18, 2025-6pm EST Nov 24, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation