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

Thunderstorms and Widespread Rainfall Across the Southern Plains

Isolated severe thunderstorms and widespread showers may produce flash flooding across the Southern Plains through Thursday. Numerous instances of flash flooding are expected in south-central Texas, including portions of the Hill Country; and an additional area across eastern Oklahoma into the Ozarks on Thursday. Heavy rainfall and mountain snow will return to southern California on Thursday. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

42°F

6°C

Humidity 82%
Wind Speed N 5 mph
Barometer 30.23 in (1023.8 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 20 Nov 1:52 am EST
Extended Forecast for

3 Miles SSW Ashburn VA

  • Overnight

    Overnight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 37. Light north wind.

    Low: 37 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 50. Light and variable wind.

    High: 50 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Patchy fog. Otherwise, cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Patchy Fog

  • Friday

    Friday: A chance of rain, mainly after 1pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 56. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 40%.

    High: 56 °F

    Chance Rain
    and Patchy
    Fog

  • Friday Night

    Friday Night: Rain. Low around 47. Light and variable wind becoming northwest around 6 mph after midnight. Chance of precipitation is 80%.

    Low: 47 °F

    Rain

  • Saturday

    Saturday: A chance of rain before 1pm. Partly sunny, with a high near 57. Chance of precipitation is 30%.

    High: 57 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 37. Light north wind.
Thursday
Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 50. Light and variable wind.
Thursday Night
Patchy fog. Otherwise, cloudy, with a low around 39. Calm wind.
Friday
A chance of rain, mainly after 1pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 56. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 40%.
Friday Night
Rain. Low around 47. Light and variable wind becoming northwest around 6 mph after midnight. Chance of precipitation is 80%.
Saturday
A chance of rain before 1pm. Partly sunny, with a high near 57. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 36.
Monday
Mostly sunny, with a high near 58.
Monday Night
Mostly cloudy, with a low around 39.
Tuesday
A chance of rain. Mostly cloudy, with a high near 56. Chance of precipitation is 30%.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Wednesday
Partly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Ashburn VA
 39°N 77.49°W (Elev. 299 ft)
Last Update:
2:30 am EST Nov 20, 2025
Forecast Valid:
2am EST Nov 20, 2025-6pm EST Nov 26, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation