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

Hazardous Weather Conditions

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Overcast and Windy

36°F

2°C

Humidity 44%
Wind Speed W 29 mph
Barometer 29.62 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 29 Dec 4:53 pm EST
Extended Forecast for

3 Miles SSW Mercersburg PA

Wind Advisory December 29, 04:55pm until December 30, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory December 29, 04:55pm until December 30, 12:00pm

    NOW until 12:00pm Tue

    Wind Advisory

  • Tonight

    Low: 24 °F

    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33. Breezy, with a west wind 15 to 25 mph, with gusts as high as 47 mph.

    High: 33 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 23. West wind 7 to 10 mph, with gusts as high as 24 mph.

    Low: 23 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 38. West wind 7 to 10 mph, with gusts as high as 23 mph.

    High: 38 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of snow showers before 1am. Mostly cloudy, with a low around 22. West wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 22 °F

    Chance Snow
    Showers

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 24. Breezy, with a west wind 22 to 25 mph, with gusts as high as 55 mph.
Tuesday
Mostly sunny, with a high near 33. Breezy, with a west wind 15 to 25 mph, with gusts as high as 47 mph.
Tuesday Night
Mostly cloudy, with a low around 23. West wind 7 to 10 mph, with gusts as high as 24 mph.
Wednesday
Mostly cloudy, with a high near 38. West wind 7 to 10 mph, with gusts as high as 23 mph.
Wednesday Night
A chance of snow showers before 1am. Mostly cloudy, with a low around 22. West wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
New Year's Day
Mostly sunny, with a high near 30.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 40.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Mostly cloudy, with a high near 40.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
Mostly sunny, with a high near 40.
Sunday Night
Mostly cloudy, with a low around 25.
Monday
Partly sunny, with a high near 43.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Mercersburg PA
 39.78°N 77.94°W (Elev. 551 ft)
Last Update:
2:21 pm EST Dec 29, 2025
Forecast Valid:
4pm EST Dec 29, 2025-6pm EST Jan 5, 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