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.

Mostly Cloudy

40°F

4°C

Humidity 35%
Wind Speed NW 20 G 32 mph
Barometer 30.18 in (1022.1 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 28 Nov 1:52 pm EST
Extended Forecast for

Fairfax VA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 41. West wind 16 to 18 mph, with gusts as high as 33 mph.

    High: 41 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 26. West wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 26 °F

    Mostly Clear

  • Saturday

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

    High: 42 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 30. Calm wind becoming south around 6 mph after midnight.

    Low: 30 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain likely, mainly after 1pm. Cloudy, with a high near 45. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 45 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of snow after 1am. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tuesday

    Tuesday: Rain. High near 38. Chance of precipitation is 80%.

    High: 38 °F

    Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 41. West wind 16 to 18 mph, with gusts as high as 33 mph.
Tonight
Mostly clear, with a low around 26. West wind 7 to 10 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 42. Northwest wind around 6 mph becoming calm in the afternoon.
Saturday Night
Increasing clouds, with a low around 30. Calm wind becoming south around 6 mph after midnight.
Sunday
Rain likely, mainly after 1pm. Cloudy, with a high near 45. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 42.
Monday Night
A chance of snow after 1am. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Tuesday
Rain. High near 38. Chance of precipitation is 80%.
Tuesday Night
A chance of rain before 1am. Partly cloudy, with a low around 28. Chance of precipitation is 30%.
Wednesday
Sunny, with a high near 41.
Wednesday Night
Partly cloudy, with a low around 27.
Thursday
Partly sunny, with a high near 44.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fairfax VA
 38.85°N 77.29°W (Elev. 400 ft)
Last Update:
12:53 pm EST Nov 28, 2025
Forecast Valid:
2pm EST Nov 28, 2025-6pm EST Dec 4, 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