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Severe Thunderstorms and Heavy Rainfall; Typhoon Watch in Guam and CNMI

Heavy to excessive rainfall will continue through tonight from the Texas Big Bend region into southern Oklahoma. Scattered damaging wind gusts and a few tornadoes may accompany a line of severe thunderstorms that is expected across the Mid-Atlantic into New England Friday. A Typhoon Watch continues for Guam and CNMI as Tropical Storm Champi will strengthen and approach the islands this weekend. Read More >

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Overcast

58°F

14°C

Humidity 93%
Wind Speed S 10 mph
Barometer 30.06 in (1018.9 mb)
Dewpoint 56°F (13°C)
Visibility 9.00 mi
Last update 15 Oct 11:53 pm EDT
Extended Forecast for

Williamsport MD

  • Overnight

    Overnight: A chance of showers, mainly between 2am and 5am. Patchy fog between 2am and 3am. Otherwise, cloudy, with a low around 57. South wind around 9 mph. Chance of precipitation is 50%.

    Low: 57 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 85. South wind 9 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 2am. Increasing clouds, with a low around 46. Northwest wind 14 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 46 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 55. Breezy, with a north wind 20 to 24 mph, with gusts as high as 37 mph.

    High: 55 °F

    Decreasing
    Clouds and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 34. North wind 5 to 10 mph becoming light after midnight.

    Low: 34 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers, mainly between 2am and 5am. Patchy fog between 2am and 3am. Otherwise, cloudy, with a low around 57. South wind around 9 mph. Chance of precipitation is 50%.
Friday
A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 85. South wind 9 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 2am. Increasing clouds, with a low around 46. Northwest wind 14 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 55. Breezy, with a north wind 20 to 24 mph, with gusts as high as 37 mph.
Saturday Night
Clear, with a low around 34. North wind 5 to 10 mph becoming light after midnight.
Sunday
Sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 35.
Monday
Sunny, with a high near 63.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
Partly cloudy, with a low around 42.
Wednesday
Sunny, with a high near 67.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Williamsport MD
 39.59°N 77.83°W (Elev. 348 ft)
Last Update:
10:53 pm EDT Oct 15, 2026
Forecast Valid:
12am EDT Oct 16, 2026-6pm EDT Oct 22, 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