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

48°F

9°C

Humidity 46%
Wind Speed S 8 mph
Barometer 29.48 in (998.1 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 14 Jan 4:52 pm EST
Extended Forecast for

Fairfax VA

  • Tonight

    Tonight: A chance of rain before 2am. Cloudy, then gradually becoming partly cloudy, with a low around 27. West wind 7 to 12 mph becoming northwest 13 to 18 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 30%.

    Low: 27 °F

    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 31. Northwest wind around 17 mph, with gusts as high as 31 mph.

    High: 31 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 21. West wind 9 to 14 mph, with gusts as high as 28 mph.

    Low: 21 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 36. South wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 36 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 31. South wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain and snow showers before 1pm, then a slight chance of rain showers. Partly sunny, with a high near 45. Chance of precipitation is 30%.

    High: 45 °F

    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of rain before 2am. Cloudy, then gradually becoming partly cloudy, with a low around 27. West wind 7 to 12 mph becoming northwest 13 to 18 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 31. Northwest wind around 17 mph, with gusts as high as 31 mph.
Thursday Night
Mostly clear, with a low around 21. West wind 9 to 14 mph, with gusts as high as 28 mph.
Friday
Mostly sunny, with a high near 36. South wind 6 to 11 mph, with gusts as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 31. South wind 8 to 10 mph, with gusts as high as 20 mph.
Saturday
A chance of rain and snow showers before 1pm, then a slight chance of rain showers. Partly sunny, with a high near 45. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
Partly sunny, with a high near 31.
Sunday Night
Mostly clear, with a low around 17.
M.L.King Day
Sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Mostly sunny, with a high near 28.
Tuesday Night
Mostly clear, with a low around 14.
Wednesday
Mostly sunny, with a high near 34.
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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:
3:54 pm EST Jan 14, 2026
Forecast Valid:
5pm EST Jan 14, 2026-6pm EST Jan 21, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation