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.

Fair

61°F

16°C

Humidity 56%
Wind Speed S 5 mph
Barometer 30.06 in (1018.8 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 15 May 10:53 pm EDT
Extended Forecast for

3 Miles NW Mercersburg PA

  • Tonight

    Tonight: Mostly clear, with a low around 49. Calm wind.

    Low: 49 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, then becoming partly sunny during the afternoon, with a high near 81. Calm wind becoming south around 6 mph in the morning.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers, mainly after 7pm. Mostly cloudy, with a low around 61. West wind 3 to 5 mph. Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Light west wind. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 63. Calm wind. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Sunny then
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers before 8pm. Mostly clear, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 93.

    High: 93 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 49. Calm wind.
Saturday
Sunny, then becoming partly sunny during the afternoon, with a high near 81. Calm wind becoming south around 6 mph in the morning.
Saturday Night
A chance of showers, mainly after 7pm. Mostly cloudy, with a low around 61. West wind 3 to 5 mph. Chance of precipitation is 40%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Light west wind. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 63. Calm wind. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers before 8pm. Mostly clear, with a low around 66. Chance of precipitation is 30%.
Tuesday
Sunny and hot, with a high near 93.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 73. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 52.
Friday
A chance of showers. Mostly sunny, with a high near 72. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Mercersburg PA
 39.87°N 77.95°W (Elev. 997 ft)
Last Update:
8:06 pm EDT May 15, 2026
Forecast Valid:
11pm EDT May 15, 2026-6pm EDT May 22, 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