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

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Overcast

32°F

0°C

Humidity 59%
Wind Speed W 6 mph
Barometer 30.23 in (1025.4 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 12 Jan 2:53 am EST
Extended Forecast for

3 Miles NW Mercersburg PA

  • Overnight

    Overnight: Clear, with a low around 28. West wind around 10 mph.

    Low: 28 °F

    Clear

  • Monday

    Monday: Increasing clouds, with a high near 43. West wind 6 to 10 mph, with gusts as high as 23 mph.

    High: 43 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28. Light southwest wind.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47. Calm wind becoming south around 6 mph in the afternoon.

    High: 47 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37. South wind around 6 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain. Mostly cloudy, with a high near 49. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 60%.

    Low: 32 °F

    Rain Likely

  • Thursday

    Thursday: A chance of rain before 1pm, then a chance of rain and snow. Partly sunny, with a high near 36. Chance of precipitation is 50%.

    High: 36 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of snow before 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 30%.

    Low: 19 °F

    Chance Snow

Detailed Forecast

Overnight
Clear, with a low around 28. West wind around 10 mph.
Monday
Increasing clouds, with a high near 43. West wind 6 to 10 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around 28. Light southwest wind.
Tuesday
Mostly sunny, with a high near 47. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 37. South wind around 6 mph.
Wednesday
A chance of rain. Mostly cloudy, with a high near 49. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 60%.
Thursday
A chance of rain before 1pm, then a chance of rain and snow. Partly sunny, with a high near 36. Chance of precipitation is 50%.
Thursday Night
A chance of snow before 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 31.
Friday Night
Partly cloudy, with a low around 20.
Saturday
Mostly sunny, with a high near 37.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
Mostly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Mercersburg PA
 39.87°N 77.93°W (Elev. 686 ft)
Last Update:
3:12 am EST Jan 12, 2026
Forecast Valid:
3am EST Jan 12, 2026-6pm EST Jan 18, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation