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.

Fog/Mist

60°F

16°C

Humidity 100%
Wind Speed Calm
Barometer 30.08 in (1019.5 mb)
Dewpoint 60°F (16°C)
Visibility 0.75 mi
Last update 25 May 5:53 am EDT
Extended Forecast for

Williamson PA

  • Memorial Day

    Memorial Day: Showers likely before 11am, then a slight chance of showers after 2pm. Patchy fog between 9am and 10am. Otherwise, mostly cloudy, with a high near 78. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 78 °F

    Showers
    Likely and
    Patchy Fog
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers before 9pm. Areas of fog between 10pm and 5am. Otherwise, mostly cloudy, with a low around 59. Calm wind. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    Showers and
    Areas Fog
    then Areas
    Fog

  • Tuesday

    Tuesday: A slight chance of showers after 10am. Patchy fog between 9am and 10am. Otherwise, partly sunny, with a high near 79. Calm wind. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Patchy Fog

  • Wednesday

    Wednesday: A slight chance of showers before 2pm. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 81. Calm wind. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers and
    Areas Fog

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Memorial Day
Showers likely before 11am, then a slight chance of showers after 2pm. Patchy fog between 9am and 10am. Otherwise, mostly cloudy, with a high near 78. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A slight chance of showers before 9pm. Areas of fog between 10pm and 5am. Otherwise, mostly cloudy, with a low around 59. Calm wind. Chance of precipitation is 20%.
Tuesday
A slight chance of showers after 10am. Patchy fog between 9am and 10am. Otherwise, partly sunny, with a high near 79. Calm wind. Chance of precipitation is 20%.
Tuesday Night
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 61. Calm wind.
Wednesday
A slight chance of showers before 2pm. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 81. Calm wind. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 60.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Williamson PA
 39.86°N 77.81°W (Elev. 545 ft)
Last Update:
5:26 am EDT May 25, 2026
Forecast Valid:
6am EDT May 25, 2026-6pm EDT May 31, 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