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

54°F

12°C

Humidity 55%
Wind Speed NW 9 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 25 Dec 4:52 pm EST
Extended Forecast for

Fairfax VA

  • Tonight

    Tonight: Mostly clear, with a low around 28. North wind 6 to 9 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: A chance of rain between noon and 4pm, then a chance of sleet after 4pm. Mostly cloudy, with a high near 35. Light and variable wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 40%.

    High: 35 °F

    Mostly Cloudy
    then Chance
    Rain/Sleet

  • Friday Night

    Friday Night: Rain likely, possibly mixed with sleet before 10pm, then rain likely between 10pm and 1am, then a slight chance of drizzle after 1am. Mostly cloudy, with a low around 35. South wind 5 to 9 mph becoming north after midnight. Chance of precipitation is 70%. Little or no sleet accumulation expected.

    Low: 35 °F

    Rain/Sleet
    Likely then
    Rain Likely

  • Saturday

    Saturday: Partly sunny, with a high near 47. North wind 6 to 9 mph.

    High: 47 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32. Northeast wind around 6 mph becoming calm in the evening.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain, mainly after 1pm. Cloudy, with a high near 48. Chance of precipitation is 30%.

    High: 48 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain. Cloudy, with a low around 42. Chance of precipitation is 50%.

    Low: 42 °F

    Chance Rain

  • Monday

    Monday: Rain likely, mainly before 1pm. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.

    High: 60 °F

    Rain Likely

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 28. North wind 6 to 9 mph.
Friday
A chance of rain between noon and 4pm, then a chance of sleet after 4pm. Mostly cloudy, with a high near 35. Light and variable wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 40%.
Friday Night
Rain likely, possibly mixed with sleet before 10pm, then rain likely between 10pm and 1am, then a slight chance of drizzle after 1am. Mostly cloudy, with a low around 35. South wind 5 to 9 mph becoming north after midnight. Chance of precipitation is 70%. Little or no sleet accumulation expected.
Saturday
Partly sunny, with a high near 47. North wind 6 to 9 mph.
Saturday Night
Mostly cloudy, with a low around 32. Northeast wind around 6 mph becoming calm in the evening.
Sunday
A chance of rain, mainly after 1pm. Cloudy, with a high near 48. Chance of precipitation is 30%.
Sunday Night
A chance of rain. Cloudy, with a low around 42. Chance of precipitation is 50%.
Monday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 36.
Tuesday Night
Partly cloudy, with a low around 24.
Wednesday
Mostly sunny, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 26.
New Year's Day
Partly sunny, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfax VA
 38.87°N 77.31°W (Elev. 400 ft)
Last Update:
4:41 pm EST Dec 25, 2025
Forecast Valid:
5pm EST Dec 25, 2025-6pm EST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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