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

44°F

7°C

Humidity 41%
Wind Speed SW 5 mph
Barometer 30.34 in (1027.7 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 24 Mar 7:52 pm EDT
Extended Forecast for

Fairfax VA

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. Calm wind becoming south around 6 mph after midnight.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 59. South wind 6 to 10 mph.

    High: 59 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49. South wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 49 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 74. South wind 9 to 13 mph, with gusts as high as 23 mph.

    High: 74 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Rain likely after 2am. Mostly cloudy, with a low around 55. Southwest wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    Low: 55 °F

    Partly Cloudy
    then Rain
    Likely

  • Friday

    Friday: Rain likely. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.

    High: 63 °F

    Rain Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 37. Calm wind becoming south around 6 mph after midnight.
Wednesday
Partly sunny, with a high near 59. South wind 6 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 49. South wind 8 to 10 mph, with gusts as high as 18 mph.
Thursday
Partly sunny, with a high near 74. South wind 9 to 13 mph, with gusts as high as 23 mph.
Thursday Night
Rain likely after 2am. Mostly cloudy, with a low around 55. Southwest wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Friday
Rain likely. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.
Friday Night
Mostly cloudy, with a low around 32.
Saturday
Sunny, with a high near 50.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Partly sunny, with a high near 68.
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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:
7:54 pm EDT Mar 24, 2026
Forecast Valid:
8pm EDT Mar 24, 2026-6pm EDT Mar 31, 2026
 
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