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.

A Few Clouds

21°F

-6°C

Humidity 50%
Wind Speed W 7 mph
Barometer 29.94 in (1014.1 mb)
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 16 Jan 5:52 am EST
Extended Forecast for

Fairfax VA

  • Today

    Today: Mostly sunny, with a high near 36. South wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 36 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 31. South wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Scattered snow showers before 10am, then scattered rain showers between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 46. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 46 °F

    Scattered
    Rain/Snow
    then
    Scattered
    Showers

  • Saturday Night

    Saturday Night: A slight chance of rain after 1am, mixing with snow after 4am. Increasing clouds, with a low around 30. West wind around 6 mph becoming northwest after midnight. Chance of precipitation is 20%.

    Low: 30 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Sunday

    Sunday: A slight chance of snow. Mostly cloudy, with a high near 35. Northwest wind around 7 mph. Chance of precipitation is 20%.

    High: 35 °F

    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 38.

    High: 38 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 27.

    High: 27 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 36. South wind 6 to 10 mph, with gusts as high as 18 mph.
Tonight
Increasing clouds, with a low around 31. South wind 9 to 11 mph, with gusts as high as 20 mph.
Saturday
Scattered snow showers before 10am, then scattered rain showers between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 46. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Saturday Night
A slight chance of rain after 1am, mixing with snow after 4am. Increasing clouds, with a low around 30. West wind around 6 mph becoming northwest after midnight. Chance of precipitation is 20%.
Sunday
A slight chance of snow. Mostly cloudy, with a high near 35. Northwest wind around 7 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 21.
M.L.King Day
Sunny, with a high near 38.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Sunny, with a high near 27.
Tuesday Night
Mostly clear, with a low around 14.
Wednesday
Mostly sunny, with a high near 37.
Wednesday Night
Partly cloudy, with a low around 29.
Thursday
Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fairfax VA
 38.85°N 77.32°W (Elev. 413 ft)
Last Update:
6:28 am EST Jan 16, 2026
Forecast Valid:
6am EST Jan 16, 2026-6pm EST Jan 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation