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

63°F

17°C

Humidity 70%
Wind Speed N 5 mph
Barometer 30.17 in (1022.2 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 23 Jul 7:53 am EDT
Extended Forecast for

3 Miles S Mercersburg PA

  • Today

    Today: Sunny, with a high near 80. North wind 3 to 5 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 57. Calm wind.

    Low: 57 °F

    Clear

  • Friday

    Friday: Increasing clouds, with a high near 82. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 82 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 81. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 63. Chance of precipitation is 20%.

    Low: 63 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 80. North wind 3 to 5 mph.
Tonight
Clear, with a low around 57. Calm wind.
Friday
Increasing clouds, with a high near 82. Calm wind becoming southeast around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 61. Calm wind.
Saturday
Mostly sunny, with a high near 81. Calm wind becoming southeast around 6 mph in the afternoon.
Saturday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
Sunday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 88.
Monday Night
A chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 85. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Wednesday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Mercersburg PA
 39.8°N 77.91°W (Elev. 600 ft)
Last Update:
8:06 am EDT Jul 23, 2026
Forecast Valid:
8am EDT Jul 23, 2026-6pm EDT Jul 29, 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