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

36°F

2°C

Humidity 59%
Wind Speed S 3 mph
Barometer 30.22 in (1024.9 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 19 Mar 7:53 am EDT
Extended Forecast for

6 Miles SW Mercersburg PA

  • Today

    Today: Mostly cloudy, with a high near 54. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 54 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers after 2pm. Mostly cloudy, with a high near 64. Calm wind becoming south 5 to 8 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 47. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 65. Northwest wind 3 to 6 mph.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 44. Chance of precipitation is 50%.

    Low: 44 °F

    Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 54. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 36. Calm wind.
Friday
A chance of showers after 2pm. Mostly cloudy, with a high near 64. Calm wind becoming south 5 to 8 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 47. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 65. Northwest wind 3 to 6 mph.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Partly sunny, with a high near 72.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 44. Chance of precipitation is 50%.
Monday
Partly sunny, with a high near 52.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 54.
Basemap Options
Click map to change the forecast location
Loading map...
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:
8:06 am EDT Mar 19, 2026
Forecast Valid:
8am EDT Mar 19, 2026-6pm EDT Mar 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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