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

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Partly Cloudy

36°F

2°C

Humidity 57%
Wind Speed NW 9 mph
Barometer 30.12 in (1020.1 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 3 Dec 8:52 am EST
Extended Forecast for

3 Miles SSE Chantilly VA

  • Today

    Today: Sunny, with a high near 41. Northwest wind 5 to 7 mph becoming calm in the afternoon.

    High: 41 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 25. Light and variable wind.

    Low: 25 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 42. Light northwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 24 mph.

    High: 42 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 20. Northwest wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 20 °F

    Partly Cloudy

  • Friday

    Friday: A chance of snow, mainly after 1pm. Mostly cloudy, with a high near 34. East wind 5 to 7 mph becoming south in the afternoon. Chance of precipitation is 40%.

    High: 34 °F

    Chance Snow

  • Friday Night

    Friday Night: A chance of snow before 10pm, then a chance of freezing rain between 10pm and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.

    Low: 24 °F

    Chance Wintry
    Mix

  • Saturday

    Saturday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 41. Northwest wind 5 to 7 mph becoming calm in the afternoon.
Tonight
Mostly clear, with a low around 25. Light and variable wind.
Thursday
Increasing clouds, with a high near 42. Light northwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 20. Northwest wind 6 to 11 mph, with gusts as high as 18 mph.
Friday
A chance of snow, mainly after 1pm. Mostly cloudy, with a high near 34. East wind 5 to 7 mph becoming south in the afternoon. Chance of precipitation is 40%.
Friday Night
A chance of snow before 10pm, then a chance of freezing rain between 10pm and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
Partly sunny, with a high near 42.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
Partly sunny, with a high near 36.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
Partly sunny, with a high near 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Chantilly VA
 38.84°N 77.38°W (Elev. 449 ft)
Last Update:
9:00 am EST Dec 3, 2025
Forecast Valid:
9am EST Dec 3, 2025-6pm EST Dec 9, 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

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation