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

40°F

4°C

Humidity 35%
Wind Speed SW 6 mph
Barometer 30.14 in (1022.4 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 12 Jan 6:53 pm EST
Extended Forecast for

South Mountain PA

  • Tonight

    Tonight: Mostly clear, with a low around 28. West wind 7 to 9 mph.

    Low: 28 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 44. South wind around 8 mph.

    High: 44 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36. Southwest wind 7 to 9 mph, with gusts as high as 23 mph.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 1pm. Cloudy, with a high near 44. Southwest wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain likely, possibly mixed with snow before 4am, then a chance of snow. Mostly cloudy, with a low around 22. Northwest wind 5 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of snow before 1pm. Partly sunny, with a high near 27. Chance of precipitation is 30%.

    High: 27 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 13.

    Low: 13 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 28. West wind 7 to 9 mph.
Tuesday
Increasing clouds, with a high near 44. South wind around 8 mph.
Tuesday Night
Mostly cloudy, with a low around 36. Southwest wind 7 to 9 mph, with gusts as high as 23 mph.
Wednesday
Rain likely, mainly after 1pm. Cloudy, with a high near 44. Southwest wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain likely, possibly mixed with snow before 4am, then a chance of snow. Mostly cloudy, with a low around 22. Northwest wind 5 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow before 1pm. Partly sunny, with a high near 27. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 13.
Friday
Mostly sunny, with a high near 27.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
A chance of snow showers after 1pm. Partly sunny, with a high near 35. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 18.
Sunday
Partly sunny, with a high near 26.
Sunday Night
Partly cloudy, with a low around 11.
M.L.King Day
Mostly sunny, with a high near 24.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Mountain PA
 39.85°N 77.5°W (Elev. 1627 ft)
Last Update:
7:05 pm EST Jan 12, 2026
Forecast Valid:
7pm EST Jan 12, 2026-6pm EST Jan 19, 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