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.

Fair

51°F

11°C

Humidity 61%
Wind Speed N 7 mph
Barometer 30.09 in (1018.8 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 24 Dec 5:52 am EST
Extended Forecast for

Fairfax VA

  • Today

    Today: Sunny, with a high near 51. Northwest wind 8 to 14 mph, with gusts as high as 25 mph.

    High: 51 °F

    Sunny

  • Tonight

    Tonight: A slight chance of rain after 4am. Increasing clouds, with a low around 35. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 20%.

    Low: 35 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Christmas Day

    Christmas Day: A chance of rain before 1pm. Mostly cloudy, with a high near 54. South wind around 9 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 30%.

    High: 54 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 29. North wind 6 to 8 mph.

    Low: 29 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of rain or freezing rain before 10am, then a chance of rain between 10am and 1pm, then rain and sleet likely after 1pm. Cloudy, with a high near 36. Northeast wind 5 to 8 mph becoming southeast in the afternoon. Chance of precipitation is 70%. New sleet accumulation of less than a half inch possible.

    High: 36 °F

    Chance
    Rain/Freezing
    Rain then
    Rain/Sleet
    Likely

  • Friday Night

    Friday Night: Rain and freezing rain, possibly mixed with sleet, becoming all rain after 10pm. Low around 31. Chance of precipitation is 80%. New sleet accumulation of less than a half inch possible.

    Low: 31 °F

    Wintry Mix
    then Rain

  • Saturday

    Saturday: Mostly cloudy, with a high near 44.

    High: 44 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain. Cloudy, with a high near 49. Chance of precipitation is 50%.

    High: 49 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 51. Northwest wind 8 to 14 mph, with gusts as high as 25 mph.
Tonight
A slight chance of rain after 4am. Increasing clouds, with a low around 35. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 20%.
Christmas Day
A chance of rain before 1pm. Mostly cloudy, with a high near 54. South wind around 9 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 29. North wind 6 to 8 mph.
Friday
A chance of rain or freezing rain before 10am, then a chance of rain between 10am and 1pm, then rain and sleet likely after 1pm. Cloudy, with a high near 36. Northeast wind 5 to 8 mph becoming southeast in the afternoon. Chance of precipitation is 70%. New sleet accumulation of less than a half inch possible.
Friday Night
Rain and freezing rain, possibly mixed with sleet, becoming all rain after 10pm. Low around 31. Chance of precipitation is 80%. New sleet accumulation of less than a half inch possible.
Saturday
Mostly cloudy, with a high near 44.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
A chance of rain. Cloudy, with a high near 49. Chance of precipitation is 50%.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 32. Chance of precipitation is 50%.
Monday
Mostly sunny, with a high near 41.
Monday Night
Mostly clear, with a low around 20.
Tuesday
Sunny, with a high near 32.
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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:
3:53 am EST Dec 24, 2025
Forecast Valid:
6am EST Dec 24, 2025-6pm EST Dec 30, 2025
 
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Additional Resources

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Chance of Precipitation