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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

3 Miles SSW Mercersburg PA

Winter Weather Advisory December 27, 03:11am until December 27, 07:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 27, 03:11am until December 27, 07:00am

    NOW until 7:00am Sat

    Winter Weather Advisory

  • Overnight

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: Cloudy, then gradually becoming mostly sunny, with a high near 42. North wind 3 to 6 mph.

    High: 42 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 27. Calm wind.

    Low: 27 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A slight chance of rain and snow showers before 10am, then a chance of rain showers. Cloudy, with a high near 45. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 45 °F

    Slight Chance
    Rain/Snow
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers. Cloudy, with a low around 41. South wind 5 to 8 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers. Partly sunny, with a high near 57. Breezy. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25. Breezy.

    Low: 25 °F

    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 33. Breezy.

    High: 33 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Sunny

Detailed Forecast

Overnight
Mostly cloudy, with a low around 33. Northwest wind 3 to 5 mph.
Saturday
Cloudy, then gradually becoming mostly sunny, with a high near 42. North wind 3 to 6 mph.
Saturday Night
Increasing clouds, with a low around 27. Calm wind.
Sunday
A slight chance of rain and snow showers before 10am, then a chance of rain showers. Cloudy, with a high near 45. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 50%. Little or no snow accumulation expected.
Sunday Night
A chance of showers. Cloudy, with a low around 41. South wind 5 to 8 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers. Partly sunny, with a high near 57. Breezy. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly cloudy, with a low around 25. Breezy.
Tuesday
Partly sunny, with a high near 33. Breezy.
Tuesday Night
Partly cloudy, with a low around 24.
Wednesday
Partly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 26.
New Year's Day
Mostly cloudy, with a high near 37.
Thursday Night
Mostly cloudy, with a low around 17.
Friday
Sunny, with a high near 29.
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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:
3:06 am EST Dec 27, 2025
Forecast Valid:
3am EST Dec 27, 2025-6pm EST Jan 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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