News Headlines
Hazardous Weather Conditions
Current conditions at
Hagerstown, Washington County Regional Airport (KHGR)
Lat: 39.71°NLon: 77.73°WElev: 702ft.
Mostly Cloudy
31°F
-1°C
| Humidity | 76% |
| Wind Speed | S 12 mph |
| Barometer | 29.66 in (1006.0 mb) |
| Dewpoint | 24°F (-4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 22°F (-6°C) |
| Last update | 10 Dec 6:53 am EST |
Extended Forecast for
Mercersburg PA
Today
High: 44 °F
Chance
Rain/Snow
then Rain
LikelyTonight

Low: 27 °F
Increasing
CloudsThursday

High: 34 °F
Mostly Sunny
Thursday Night

Low: 24 °F
Partly Cloudy
Friday

High: 35 °F
Chance Snow
ShowersFriday Night

Low: 25 °F
Chance Snow
ShowersSaturday

High: 37 °F
Partly Sunny
Saturday Night

Low: 21 °F
Chance Snow
ShowersSunday

High: 29 °F
Partly Sunny
Detailed Forecast
Today
A slight chance of snow before 10am, then rain likely. Cloudy, with a high near 44. South wind 7 to 9 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tonight
Increasing clouds, with a low around 27. West wind 7 to 10 mph, with gusts as high as 28 mph.
Thursday
Mostly sunny, with a high near 34. West wind around 17 mph, with gusts as high as 37 mph.
Thursday Night
Partly cloudy, with a low around 24. West wind 6 to 13 mph, with gusts as high as 28 mph.
Friday
A chance of snow showers. Mostly cloudy, with a high near 35. Southwest wind 3 to 6 mph. Chance of precipitation is 40%.
Friday Night
A chance of snow showers, mainly before 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 37.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.
Sunday
Partly sunny, with a high near 29.
Sunday Night
Partly cloudy, with a low around 15.
Monday
Mostly sunny, with a high near 30.
Monday Night
Mostly cloudy, with a low around 19.
Tuesday
Partly sunny, with a high near 36.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Mercersburg PA
39.82°N 77.9°W (Elev. 600 ft)
39.82°N 77.9°W (Elev. 600 ft)
7:05 am EST Dec 10, 2025
7am EST Dec 10, 2025-6pm EST Dec 16, 2025



