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

54°F

12°C

Humidity 90%
Wind Speed SW 8 mph
Barometer 30.12 in (1019.8 mb)
Dewpoint 51°F (11°C)
Visibility 8.00 mi
Wind Chill52°F (11°C)
Last update 9 Jan 9:52 pm EST
Extended Forecast for

Fairfax VA

  • Tonight

    Tonight: A chance of rain, mainly after 5am. Cloudy, with a low around 44. Southwest wind 5 to 7 mph becoming north after midnight. Chance of precipitation is 30%.

    Low: 44 °F

    Cloudy then
    Chance Rain

  • Saturday

    Saturday: Rain, mainly before 4pm. High near 49. Northeast wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 49 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly between 7pm and 1am. Cloudy, with a low around 38. Light and variable wind becoming northwest 5 to 10 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain Likely

  • Sunday

    Sunday: A slight chance of rain and snow showers between 1pm and 3pm, then a slight chance of snow showers after 3pm. Mostly sunny, with a high near 44. Breezy, with a west wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 20%.

    High: 44 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 28. Breezy, with a west wind 14 to 20 mph, with gusts as high as 28 mph.

    Low: 28 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of rain, mainly after 5am. Cloudy, with a low around 44. Southwest wind 5 to 7 mph becoming north after midnight. Chance of precipitation is 30%.
Saturday
Rain, mainly before 4pm. High near 49. Northeast wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Rain likely, mainly between 7pm and 1am. Cloudy, with a low around 38. Light and variable wind becoming northwest 5 to 10 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A slight chance of rain and snow showers between 1pm and 3pm, then a slight chance of snow showers after 3pm. Mostly sunny, with a high near 44. Breezy, with a west wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 28. Breezy, with a west wind 14 to 20 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 43.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Mostly cloudy, with a high near 49.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
A chance of rain. Partly sunny, with a high near 39. Chance of precipitation is 30%.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 36.
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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:
9:53 pm EST Jan 9, 2026
Forecast Valid:
10pm EST Jan 9, 2026-6pm EST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation