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.

Overcast

25°F

-4°C

Humidity 44%
Wind Speed S 5 mph
Barometer 30.26 in (1025.2 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 9 Dec 10:52 am EST
Extended Forecast for

Fairfax VA

  • Today

    Today: Mostly sunny, with a high near 35. South wind 5 to 9 mph.

    High: 35 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 29. South wind around 10 mph, with gusts as high as 21 mph.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain after 1pm. Mostly cloudy, with a high near 46. South wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 46 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 40. Northwest wind 10 to 13 mph, with gusts as high as 22 mph.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 26 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of snow before 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Chance Snow

  • Saturday

    Saturday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 35. South wind 5 to 9 mph.
Tonight
Partly cloudy, with a low around 29. South wind around 10 mph, with gusts as high as 21 mph.
Wednesday
A slight chance of rain after 1pm. Mostly cloudy, with a high near 46. South wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 31. Southwest wind around 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 40. Northwest wind 10 to 13 mph, with gusts as high as 22 mph.
Thursday Night
Mostly cloudy, with a low around 26.
Friday
Partly sunny, with a high near 39.
Friday Night
A chance of snow before 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 42.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 34.
Sunday Night
Mostly clear, with a low around 17.
Monday
Mostly sunny, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfax VA
 38.85°N 77.32°W (Elev. 413 ft)
Last Update:
10:34 am EST Dec 9, 2025
Forecast Valid:
11am EST Dec 9, 2025-6pm EST Dec 15, 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