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 41%
Wind Speed NE 3 mph
Barometer 30.28 in (1025.6 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Last update 5 Dec 2:52 am EST
Extended Forecast for

3 Miles ESE Chantilly VA

Winter Weather Advisory December 5, 04:00am until December 5, 04:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: Snow, mainly after 4am. Low around 21. East wind around 5 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than one inch possible.

    Low: 21 °F

    Snow

  • Friday

    Friday: Snow, mainly before 8am. High near 32. East wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 32 °F

    Snow then
    Chance Snow

  • Friday Night

    Friday Night: Patchy fog before 1am, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Patchy Fog

  • Saturday

    Saturday: Partly sunny, with a high near 42. Light southwest wind.

    High: 42 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26. Light and variable wind.

    Low: 26 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

Detailed Forecast

Overnight
Snow, mainly after 4am. Low around 21. East wind around 5 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than one inch possible.
Friday
Snow, mainly before 8am. High near 32. East wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday Night
Patchy fog before 1am, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 24. Calm wind.
Saturday
Partly sunny, with a high near 42. Light southwest wind.
Saturday Night
Partly cloudy, with a low around 26. Light and variable wind.
Sunday
Partly sunny, with a high near 42.
Sunday Night
Mostly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 34.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Mostly cloudy, with a high near 47.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 36. Chance of precipitation is 40%.
Thursday
A chance of rain. Partly sunny, with a high near 44. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
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:
12:53 am EST Dec 5, 2025
Forecast Valid:
3am EST Dec 5, 2025-6pm EST Dec 11, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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