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.

Mostly Cloudy and Breezy

64°F

18°C

Humidity 84%
Wind Speed S 21 G 35 mph
Barometer 29.32 in (993.6 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 16 Mar 3:53 pm EDT
Extended Forecast for

3 Miles N Mercersburg PA

  • This Afternoon

    This Afternoon: Rain and possibly a thunderstorm. High near 67. South wind 11 to 14 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 67 °F

    Rain

  • Tonight

    Tonight: Rain and snow before 11pm, then a chance of snow between 11pm and 1am. Some thunder is also possible. Low around 26. West wind around 11 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Rain/Snow
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35. West wind 9 to 13 mph, with gusts as high as 28 mph.

    High: 35 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 22. West wind around 6 mph becoming calm in the evening.

    Low: 22 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 39. Calm wind becoming south around 6 mph in the afternoon.

    High: 39 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °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 34.

    Low: 34 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of rain after 2pm. Partly sunny, with a high near 58. Chance of precipitation is 30%.

    High: 58 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

This Afternoon
Rain and possibly a thunderstorm. High near 67. South wind 11 to 14 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Rain and snow before 11pm, then a chance of snow between 11pm and 1am. Some thunder is also possible. Low around 26. West wind around 11 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Tuesday
Mostly sunny, with a high near 35. West wind 9 to 13 mph, with gusts as high as 28 mph.
Tuesday Night
Partly cloudy, with a low around 22. West wind around 6 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 39. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
Mostly cloudy, with a high near 48.
Thursday Night
Mostly cloudy, with a low around 34.
Friday
A chance of rain after 2pm. Partly sunny, with a high near 58. Chance of precipitation is 30%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 40. Chance of precipitation is 50%.
Saturday
A chance of rain. Partly sunny, with a high near 56. Chance of precipitation is 30%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 39. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 59.
Sunday Night
Mostly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Mercersburg PA
 39.87°N 77.9°W (Elev. 564 ft)
Last Update:
3:31 pm EDT Mar 16, 2026
Forecast Valid:
4pm EDT Mar 16, 2026-6pm EDT Mar 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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