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

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Light Rain Fog/Mist

33°F

1°C

Humidity 92%
Wind Speed S 5 mph
Barometer 29.96 in (1014.7 mb)
Dewpoint 31°F (-1°C)
Visibility 6.00 mi
Wind Chill28°F (-2°C)
Last update 2 Dec 6:52 am EST
Extended Forecast for

Chantilly VA

  • Today

    Today: Rain and snow, possibly mixed with sleet before 1pm, then a chance of rain between 1pm and 3pm. High near 40. Calm wind becoming northwest 5 to 9 mph in the afternoon. Chance of precipitation is 100%. Total daytime snow and sleet accumulation of less than a half inch possible.

    High: 40 °F

    Wintry Mix
    then Rain
    Likely

  • Tonight

    Tonight: Mostly clear, with a low around 27. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 42. Northwest wind around 6 mph becoming calm in the afternoon.

    High: 42 °F

    Sunny

  • Wednesday Night

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

    Low: 25 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 43. Light northwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 43 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.

    Low: 26 °F

    Chance Snow

  • Saturday

    Saturday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

Detailed Forecast

Today
Rain and snow, possibly mixed with sleet before 1pm, then a chance of rain between 1pm and 3pm. High near 40. Calm wind becoming northwest 5 to 9 mph in the afternoon. Chance of precipitation is 100%. Total daytime snow and sleet accumulation of less than a half inch possible.
Tonight
Mostly clear, with a low around 27. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 42. Northwest wind around 6 mph becoming calm in the afternoon.
Wednesday Night
Mostly clear, with a low around 25. Light and variable wind.
Thursday
Partly sunny, with a high near 43. Light northwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 35.
Friday Night
A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 44.
Saturday Night
Mostly cloudy, with a low around 28.
Sunday
Partly sunny, with a high near 41.
Sunday Night
Mostly cloudy, with a low around 25.
Monday
Partly sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chantilly VA
 38.88°N 77.4°W (Elev. 358 ft)
Last Update:
6:52 am EST Dec 2, 2025
Forecast Valid:
6am EST Dec 2, 2025-6pm EST Dec 8, 2025
 
Forecast Discussion
 
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Additional Resources

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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