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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

Frederick Municipal Airport (KFDK)

Lat: 39.42°NLon: 77.37°WElev: 269ft.

Fog/Mist

58°F

14°C

Humidity 100%
Wind Speed Calm
Barometer 30.11 in
Dewpoint 58°F (14°C)
Visibility 5.00 mi
Last update 15 Oct 11:35 pm EDT
Extended Forecast for

Green Valley MD

  • Tonight

    Tonight: Showers likely, mainly before 1am. Patchy fog between 2am and 3am. Otherwise, cloudy, with a low around 57. South wind around 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Showers
    Likely and
    Patchy Fog

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. Southwest wind 11 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Increasing clouds, with a low around 46. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Showers
    Likely and
    Breezy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 52. Breezy, with a north wind 22 to 25 mph, with gusts as high as 38 mph.

    High: 52 °F

    Decreasing
    Clouds and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34. North wind 6 to 11 mph.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 55.

    High: 55 °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 61.

    High: 61 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers likely, mainly before 1am. Patchy fog between 2am and 3am. Otherwise, cloudy, with a low around 57. South wind around 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of showers, with thunderstorms also possible after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. Southwest wind 11 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Friday Night
Showers likely and possibly a thunderstorm. Increasing clouds, with a low around 46. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 52. Breezy, with a north wind 22 to 25 mph, with gusts as high as 38 mph.
Saturday Night
Mostly clear, with a low around 34. North wind 6 to 11 mph.
Sunday
Sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 37.
Monday
Sunny, with a high near 61.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Green Valley MD
 39.33°N 77.24°W (Elev. 607 ft)
Last Update:
10:53 pm EDT Oct 15, 2026
Forecast Valid:
11pm EDT Oct 15, 2026-6pm EDT Oct 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation