National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk into the Weekend on the East Coast; Flash Flooding Possible in the Southeast

A dangerous, record heat wave continues for the Desert Southwest and the Central Valley of California through Saturday, and the Pacific Northwest through Tuesday. Coastal flooding is expected through tonight at high tide along the Eastern Seaboard from Erin, while the high rip current risk and dangerous surf continue through the weekend. Flash flooding possible today in Georgia and South Carolina. Read More >

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Mostly Cloudy

73°F

23°C

Humidity 69%
Wind Speed NE 3 mph
Barometer 30.09 in (1019.4 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 22 Aug 9:53 am EDT
Extended Forecast for

Williamsport MD

  • Today

    Today: Sunny, with a high near 84. Light and variable wind.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 60. Light southeast wind.

    Low: 60 °F

    Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 85. Light southeast wind becoming south 6 to 11 mph in the morning.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 66. South wind 7 to 10 mph. Chance of precipitation is 30%.

    Low: 66 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. South wind around 7 mph. Chance of precipitation is 70%.

    High: 83 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Monday

    Monday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 84. Light and variable wind.
Tonight
Clear, with a low around 60. Light southeast wind.
Saturday
Mostly sunny, with a high near 85. Light southeast wind becoming south 6 to 11 mph in the morning.
Saturday Night
A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 66. South wind 7 to 10 mph. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. South wind around 7 mph. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Williamsport MD
 39.59°N 77.8°W (Elev. 499 ft)
Last Update:
7:29 am EDT Aug 22, 2025
Forecast Valid:
10am EDT Aug 22, 2025-6pm EDT Aug 28, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation