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

29°F

-2°C

Humidity 39%
Wind Speed S 7 mph
Barometer 30.15 in (1021.4 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 9 Dec 12:52 pm EST
Extended Forecast for

2 Miles WNW Chantilly VA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 35. South wind around 10 mph.

    High: 35 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. South wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain and snow before 2pm, then a slight chance of rain between 2pm and 4pm. Cloudy, with a high near 45. South wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 45 °F

    Slight Chance
    Rain/Snow
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31. Southwest wind 9 to 11 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 40. Northwest wind 11 to 14 mph, with gusts as high as 25 mph.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Friday

    Friday: A chance of snow after 1pm. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.

    High: 38 °F

    Mostly Cloudy
    then Chance
    Snow

  • Friday Night

    Friday Night: A chance of snow before 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Chance Snow

  • Saturday

    Saturday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 35. South wind around 10 mph.
Tonight
Mostly cloudy, with a low around 27. South wind 9 to 11 mph, with gusts as high as 21 mph.
Wednesday
A chance of rain and snow before 2pm, then a slight chance of rain between 2pm and 4pm. Cloudy, with a high near 45. South wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 31. Southwest wind 9 to 11 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Thursday
Mostly sunny, with a high near 40. Northwest wind 11 to 14 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 24.
Friday
A chance of snow after 1pm. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.
Friday Night
A chance of snow before 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 44.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 39.
Sunday Night
Mostly clear, with a low around 16.
Monday
Mostly sunny, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Chantilly VA
 38.89°N 77.46°W (Elev. 282 ft)
Last Update:
12:53 pm EST Dec 9, 2025
Forecast Valid:
1pm EST Dec 9, 2025-6pm EST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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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