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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

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Light Rain Fog/Mist

59°F

15°C

Humidity 96%
Wind Speed SE 3 mph
Barometer 30.12 in (1019.9 mb)
Dewpoint 58°F (14°C)
Visibility 4.00 mi
Last update 15 Oct 10:52 pm EDT
Extended Forecast for

Chantilly VA

  • Tonight

    Tonight: A chance of showers before 4am, then a slight chance of showers after 5am. Patchy fog after 5am. Otherwise, cloudy, with a low around 59. South wind around 7 mph. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A chance of showers before 8am, then a slight chance of showers and thunderstorms after 5pm. Patchy fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 82. Southwest wind 9 to 13 mph. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Showers and thunderstorms before 4am, then a chance of showers. Low around 49. Northwest wind 14 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 54. Breezy, with a north wind 22 to 24 mph, with gusts as high as 37 mph.

    High: 54 °F

    Decreasing
    Clouds and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36. North wind 5 to 13 mph.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38.

    Low: 38 °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 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers before 4am, then a slight chance of showers after 5am. Patchy fog after 5am. Otherwise, cloudy, with a low around 59. South wind around 7 mph. Chance of precipitation is 30%.
Friday
A chance of showers before 8am, then a slight chance of showers and thunderstorms after 5pm. Patchy fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 82. Southwest wind 9 to 13 mph. Chance of precipitation is 30%.
Friday Night
Showers and thunderstorms before 4am, then a chance of showers. Low around 49. Northwest wind 14 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. 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 54. Breezy, with a north wind 22 to 24 mph, with gusts as high as 37 mph.
Saturday Night
Mostly clear, with a low around 36. North wind 5 to 13 mph.
Sunday
Sunny, with a high near 57.
Sunday Night
Mostly clear, with a low around 38.
Monday
Sunny, with a high near 62.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Mostly sunny, with a high near 66.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chantilly VA
 38.86°N 77.4°W (Elev. 348 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