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

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Overcast

32°F

0°C

Humidity 64%
Wind Speed SE 7 mph
Barometer 30.06 in (1018.4 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 2 Dec 3:56 am EST
Extended Forecast for

2 Miles W Mount Gretna PA

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

    NOW until 1:00pm Tue

    Winter Weather Advisory

  • Overnight

    Low: 27 °F

    Snow Likely

  • Tuesday

    Tuesday: Rain and snow, mainly before 2pm.  High near 36. Light and variable wind becoming north 5 to 7 mph in the afternoon.  Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 36 °F

    Rain/Snow
    then
    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 37. Northwest wind 5 to 8 mph becoming southwest in the afternoon.

    High: 37 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23. West wind 3 to 6 mph.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 12.

    Low: 12 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

Detailed Forecast

Overnight
Snow likely, mainly after 5am. Cloudy, with a low around 27. Southeast wind around 6 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
Rain and snow, mainly before 2pm. High near 36. Light and variable wind becoming north 5 to 7 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Tuesday Night
Mostly clear, with a low around 23. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 37. Northwest wind 5 to 8 mph becoming southwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 23. West wind 3 to 6 mph.
Thursday
Partly sunny, with a high near 37.
Thursday Night
Mostly clear, with a low around 12.
Friday
Partly sunny, with a high near 30.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
Partly sunny, with a high near 37.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Mostly cloudy, with a high near 36.
Sunday Night
Mostly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 30.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Mount Gretna PA
 40.24°N 76.5°W (Elev. 673 ft)
1:57 am EST Dec 2, 2025
4am EST Dec 2, 2025-6pm EST Dec 8, 2025
 
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