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.

Overcast

61°F

16°C

Humidity 90%
Wind Speed E 3 mph
Barometer 30.15 in (1021.9 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 24 May 10:53 pm EDT
Extended Forecast for

Mc Knightstown PA

  • Tonight

    Tonight: Showers, mainly after 3am. Patchy fog after 2am. Low around 58. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Showers and
    Patchy Fog

  • Memorial Day

    Memorial Day: Showers likely, with thunderstorms also possible after 2pm. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 75. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers
    Likely and
    Patchy Fog
    then Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers after 2am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 58. Calm wind. Chance of precipitation is 20%.

    Low: 58 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Tuesday

    Tuesday: A slight chance of showers before 2pm. Areas of dense fog before 7am. Otherwise, mostly cloudy, with a high near 76. Calm wind. Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    Showers and
    Areas Dense
    Fog

  • Tuesday Night

    Tuesday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Patchy Fog

  • Wednesday

    Wednesday: A slight chance of showers. Patchy fog before 8am. Otherwise, partly sunny, with a high near 79. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers, mainly after 3am. Patchy fog after 2am. Low around 58. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Memorial Day
Showers likely, with thunderstorms also possible after 2pm. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 75. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers after 2am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 58. Calm wind. Chance of precipitation is 20%.
Tuesday
A slight chance of showers before 2pm. Areas of dense fog before 7am. Otherwise, mostly cloudy, with a high near 76. Calm wind. Chance of precipitation is 20%.
Tuesday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 60. Calm wind.
Wednesday
A slight chance of showers. Patchy fog before 8am. Otherwise, partly sunny, with a high near 79. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 51.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Mostly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mc Knightstown PA
 39.9°N 77.37°W (Elev. 1280 ft)
Last Update:
8:06 pm EDT May 24, 2026
Forecast Valid:
11pm EDT May 24, 2026-6pm EDT May 31, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation