National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Snow in the Central/Southern Rockies; Below Average Temperatures in the Central and Eastern US

Moderate to heavy snowfall is expected in the central/southern Rockies and adjacent High Plains today. Lake-enhanced snowfall is expected downwind of the Great Lakes today. Showers and thunderstorms will be possible this evening into tonight across the western Gulf Coast states. Temperatures across much of the central and eastern CONUS will remain below average and chilly to end the week. Read More >

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Mostly Cloudy

37°F

3°C

Humidity 62%
Wind Speed NW 9 mph
Barometer 30.09 in (1020.5 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 3 Dec 11:53 am EST
Extended Forecast for

3 Miles N Mercersburg PA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 39. Light southwest wind.

    High: 39 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 24. Light southwest wind.

    Low: 24 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 38. Northwest wind 6 to 13 mph, with gusts as high as 28 mph.

    High: 38 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 14. Northwest wind around 6 mph becoming calm in the evening.

    Low: 14 °F

    Partly Cloudy

  • Friday

    Friday: A chance of light snow. Mostly cloudy, with a high near 30. Calm wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 40%.

    High: 30 °F

    Chance Light
    Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Partly sunny, with a high near 39. Light southwest wind.
Tonight
Partly cloudy, with a low around 24. Light southwest wind.
Thursday
Partly sunny, with a high near 38. Northwest wind 6 to 13 mph, with gusts as high as 28 mph.
Thursday Night
Partly cloudy, with a low around 14. Northwest wind around 6 mph becoming calm in the evening.
Friday
A chance of light snow. Mostly cloudy, with a high near 30. Calm wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 21.
Saturday
Partly sunny, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
Mostly cloudy, with a high near 41.
Sunday Night
Mostly cloudy, with a low around 23.
Monday
Mostly sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Partly sunny, with a high near 35.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Mercersburg PA
 39.87°N 77.9°W (Elev. 564 ft)
Last Update:
11:31 am EST Dec 3, 2025
Forecast Valid:
12pm EST Dec 3, 2025-6pm EST Dec 9, 2025
 
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