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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

57°F

14°C

Humidity 93%
Wind Speed Calm
Barometer 30.13 in (1021.2 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 15 Oct 8:53 pm EDT
Extended Forecast for

Chewsville MD

  • Tonight

    Tonight: A chance of showers, mainly between 10pm and 5am. Patchy fog between 2am and 3am. Otherwise, cloudy, with a low around 57. South wind 7 to 10 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 84. South wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 84 °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 15 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 46 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 54. Breezy, with a north wind 21 to 24 mph, with gusts as high as 37 mph.

    High: 54 °F

    Becoming
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 34. North wind 5 to 11 mph.

    Low: 34 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers, mainly between 10pm and 5am. Patchy fog between 2am and 3am. Otherwise, cloudy, with a low around 57. South wind 7 to 10 mph. Chance of precipitation is 50%.
Friday
A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 84. South wind 10 to 14 mph, with gusts 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 15 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 54. Breezy, with a north wind 21 to 24 mph, with gusts as high as 37 mph.
Saturday Night
Clear, with a low around 34. North wind 5 to 11 mph.
Sunday
Sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 37.
Monday
Sunny, with a high near 62.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 67.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chewsville MD
 39.65°N 77.7°W (Elev. 502 ft)
Last Update:
7:53 pm EDT Oct 15, 2026
Forecast Valid:
8pm EDT Oct 15, 2026-6pm EDT Oct 22, 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