Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Fair

74°F

23°C

Humidity 69%
Wind Speed S 3 mph
Barometer 29.95 in (1014.6 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 27 Aug 7:53 pm EDT
Extended Forecast for

3 Miles SSW Mercersburg PA

Severe T-storm Watch until August 27, 10:00pm
Click here for hazard details and duration
...
  •  
    Severe T-storm Watch until August 27, 10:00pm

    NOW until 10:00pm Thu

    Severe T-storm Watch

  • Tonight

    Low: 66 °F

    Severe
    Thunderstorms
    then Mostly
    Cloudy

  • Friday

    Friday: Patchy fog between 7am and 8am.  Otherwise, mostly sunny, with a high near 86. Light north wind.

    High: 86 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 85. Light and variable wind.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

Detailed Forecast

Tonight
A chance of showers and thunderstorms, mainly before 9pm. Some of the storms could be severe. Partly cloudy, with a low around 66. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 86. Light north wind.
Friday Night
Partly cloudy, with a low around 63. Calm wind.
Saturday
Sunny, with a high near 85. Light and variable wind.
Saturday Night
Mostly clear, with a low around 66. Calm wind.
Sunday
Sunny, with a high near 89.
Sunday Night
Partly cloudy, with a low around 69.
Monday
Mostly sunny, with a high near 91.
Monday Night
Mostly cloudy, with a low around 71.
Tuesday
Mostly sunny and hot, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 72.
Wednesday
A chance of showers. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Thursday
A chance of showers. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Mercersburg PA
 39.78°N 77.94°W (Elev. 551 ft)
8:11 pm EDT Aug 27, 2026
8pm EDT Aug 27, 2026-6pm EDT Sep 3, 2026
 
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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