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 88%
Wind Speed Calm
Barometer 29.93 in (1013.9 mb)
Dewpoint 27°F (-3°C)
Visibility 7.00 mi
Last update 6 Dec 4:52 am EST
Extended Forecast for

3 Miles ESE Chantilly VA

Winter Weather Advisory December 6, 05:27am until December 6, 07:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 6, 05:27am until December 6, 07:00am

    NOW until 7:00am Sat

    Winter Weather Advisory

  • Overnight

    Low: 28 °F

    Slight Chance
    Freezing Rain
    and Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before noon. Otherwise, partly sunny, with a high near 42. Calm 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 43. Calm wind becoming south around 5 mph in the afternoon.

    High: 43 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 26. Light and variable wind becoming north 5 to 10 mph after midnight. Winds could gust as high as 18 mph.

    Low: 26 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

Detailed Forecast

Overnight
A slight chance of freezing rain. Patchy fog. Otherwise, mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 20%.
Saturday
Patchy fog before noon. Otherwise, partly sunny, with a high near 42. Calm wind.
Saturday Night
Partly cloudy, with a low around 27. Light and variable wind.
Sunday
Partly sunny, with a high near 43. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 26. Light and variable wind becoming north 5 to 10 mph after midnight. Winds could gust as high as 18 mph.
Monday
Mostly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Mostly sunny, with a high near 37.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
Mostly cloudy, with a high near 47.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 44.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Chantilly VA
 38.86°N 77.37°W (Elev. 449 ft)
Last Update:
3:53 am EST Dec 6, 2025
Forecast Valid:
5am EST Dec 6, 2025-6pm EST Dec 12, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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