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.

Overcast

30°F

-1°C

Humidity 82%
Wind Speed NE 5 mph
Barometer 30.08 in (1018.9 mb)
Dewpoint 25°F (-4°C)
Visibility 9.00 mi
Wind Chill25°F (-4°C)
Last update 5 Dec 2:52 pm EST
Extended Forecast for

3 Miles ESE Chantilly VA

Winter Weather Advisory December 5, 07:00pm until December 6, 01:00am
Click here for hazard details and duration
Winter Weather Advisory

  • This Afternoon

    This Afternoon: A chance of snow, mainly before 4pm. Patchy fog. Otherwise, cloudy, with a high near 32. Light northeast wind. Chance of precipitation is 40%.

    High: 32 °F

    Chance Snow
    and Patchy
    Fog

  • Tonight

    Tonight: Freezing rain, mainly between 7pm and 1am. Patchy fog. Low around 27. Calm wind. Chance of precipitation is 80%. New ice accumulation of less than a 0.1 of an inch possible.

    Low: 27 °F

    Freezing Rain
    and Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 42. Light and variable wind.

    High: 42 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. Light and variable wind.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 42. Calm wind becoming south around 5 mph.

    High: 42 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A slight chance of rain and snow between 1am and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 27. Chance of precipitation is 20%.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Monday

    Monday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

  • Monday Night

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

    Low: 19 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of snow, mainly before 4pm. Patchy fog. Otherwise, cloudy, with a high near 32. Light northeast wind. Chance of precipitation is 40%.
Tonight
Freezing rain, mainly between 7pm and 1am. Patchy fog. Low around 27. Calm wind. Chance of precipitation is 80%. New ice accumulation of less than a 0.1 of an inch possible.
Saturday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 42. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 27. Light and variable wind.
Sunday
Partly sunny, with a high near 42. Calm wind becoming south around 5 mph.
Sunday Night
A slight chance of rain and snow between 1am and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 27. Chance of precipitation is 20%.
Monday
Partly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Mostly sunny, with a high near 38.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
Mostly cloudy, with a high near 46.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Chantilly VA
 38.85°N 77.35°W (Elev. 400 ft)
Last Update:
1:35 pm EST Dec 5, 2025
Forecast Valid:
2pm EST Dec 5, 2025-6pm EST Dec 11, 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