Heavy Rain in the Southern U.S.; Winter Storm to Impact the Northern Mid-Atlantic and Interior Northeast

A storm system stretching from the Tennessee Valley to the Gulf Coast will bring a variety of hazards to the Eastern U.S. through Tuesday. On the south side of the system, heavy rain and thunderstorms will persist across the Southern U.S. Further north, a wintry precipitation mix is expected from the Central Appalachians to the interior Northeast through Tuesday. Read More >

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

A Few Clouds

35°F

2°C

Humidity 61%
Wind Speed SE 7 mph
Barometer 30.13 in (1021.8 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 2 Dec 12:53 am EST
Extended Forecast for

3 Miles N Mercersburg PA

Winter Weather Advisory December 2, 03:00am until December 2, 01:00pm
Click here for hazard details and duration
Winter Weather Advisory
  • Overnight

    Overnight: Snow likely, mainly after 5am. The snow could be heavy at times.  Cloudy, with a low around 28. Southeast wind 3 to 5 mph.  Chance of precipitation is 60%. Total nighttime snow accumulation of around an inch possible.

    Low: 28 °F

    Heavy Snow

  • Tuesday

    Tuesday: Rain, snow, and sleet before 1pm, then a slight chance of rain between 1pm and 2pm. The snow could be heavy at times.  High near 42. Calm wind becoming northwest around 6 mph in the afternoon.  Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 2 inches possible.

    High: 42 °F

    Wintry Mix
    then Slight
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23. Northwest wind 3 to 7 mph.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 40. Light and variable wind.

    High: 40 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Thursday Night

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

    Low: 13 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

  • Friday Night

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

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Snow likely, mainly after 5am. The snow could be heavy at times. Cloudy, with a low around 28. Southeast wind 3 to 5 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of around an inch possible.
Tuesday
Rain, snow, and sleet before 1pm, then a slight chance of rain between 1pm and 2pm. The snow could be heavy at times. High near 42. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 2 inches possible.
Tuesday Night
Mostly clear, with a low around 23. Northwest wind 3 to 7 mph.
Wednesday
Sunny, with a high near 40. Light and variable wind.
Wednesday Night
Partly cloudy, with a low around 23. Calm wind.
Thursday
Partly sunny, with a high near 38.
Thursday Night
Mostly clear, with a low around 13.
Friday
Partly sunny, with a high near 31.
Friday Night
Mostly cloudy, with a low around 21.
Saturday
Partly sunny, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
Mostly cloudy, with a high near 39.
Sunday Night
Mostly cloudy, with a low around 22.
Monday
Partly sunny, with a high near 33.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Mercersburg PA
 39.87°N 77.9°W (Elev. 564 ft)
1:04 am EST Dec 2, 2025
1am EST Dec 2, 2025-6pm EST Dec 8, 2025
 
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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