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

60°F

16°C

Humidity 96%
Wind Speed S 10 mph
Barometer 29.62 in (1004.0 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 16 Mar 5:53 am EDT
Extended Forecast for

3 Miles N Mercersburg PA

  • Today

    Today: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. Some of the storms could be severe. High near 68. Breezy, with a south wind 10 to 20 mph, with gusts as high as 47 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 68 °F

    Severe
    Thunderstorms
    then Severe
    Thunderstorms
    and Breezy

  • Tonight

    Tonight: Rain showers and snow showers, possibly mixed with sleet before 11pm, then a slight chance of snow showers between 11pm and midnight. Low around 25. West wind around 14 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. Little or no snow and sleet accumulation expected.

    Low: 25 °F

    Wintry Mix
    then Partly
    Cloudy

  • Tuesday

    Tuesday: A slight chance of snow showers. Partly sunny, with a high near 35. West wind 11 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 35 °F

    Slight Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 22. West wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 20 mph.

    Low: 22 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 38. Calm wind becoming south around 6 mph in the afternoon.

    High: 38 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 48.

    High: 48 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. Some of the storms could be severe. High near 68. Breezy, with a south wind 10 to 20 mph, with gusts as high as 47 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Rain showers and snow showers, possibly mixed with sleet before 11pm, then a slight chance of snow showers between 11pm and midnight. Low around 25. West wind around 14 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. Little or no snow and sleet accumulation expected.
Tuesday
A slight chance of snow showers. Partly sunny, with a high near 35. West wind 11 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 22. West wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Wednesday
Partly sunny, with a high near 38. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Mostly cloudy, with a high near 48.
Thursday Night
Mostly cloudy, with a low around 35.
Friday
Partly sunny, with a high near 58.
Friday Night
A chance of showers after 2am. Mostly cloudy, with a low around 40. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly cloudy, with a high near 57. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
Partly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Mercersburg PA
 39.87°N 77.9°W (Elev. 564 ft)
Last Update:
6:30 am EDT Mar 16, 2026
Forecast Valid:
6am EDT Mar 16, 2026-6pm EDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation