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

36°F

2°C

Humidity 64%
Wind Speed S 6 mph
Barometer 30.17 in (1021.9 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 2 Dec 12:52 am EST
Extended Forecast for

3 Miles SSE Chantilly VA

  • Overnight

    Overnight: A slight chance of sleet between 3am and 4am, then rain likely. Cloudy, with a low around 31. Southeast wind 3 to 5 mph. Chance of precipitation is 60%. Little or no sleet accumulation expected.

    Low: 31 °F

    Rain/Sleet
    Likely

  • Tuesday

    Tuesday: Rain, possibly mixed with snow and sleet before 2pm, then a chance of rain between 2pm and 3pm. High near 40. Calm wind becoming northwest 5 to 9 mph in the afternoon. Chance of precipitation is 100%. Little or no snow and sleet accumulation expected.

    High: 40 °F

    Wintry Mix
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 42. Northwest wind around 6 mph becoming light and variable in the afternoon.

    High: 42 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 25. Light and variable wind.

    Low: 25 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 34.

    High: 34 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.

    Low: 26 °F

    Chance Snow

Detailed Forecast

Overnight
A slight chance of sleet between 3am and 4am, then rain likely. Cloudy, with a low around 31. Southeast wind 3 to 5 mph. Chance of precipitation is 60%. Little or no sleet accumulation expected.
Tuesday
Rain, possibly mixed with snow and sleet before 2pm, then a chance of rain between 2pm and 3pm. High near 40. Calm wind becoming northwest 5 to 9 mph in the afternoon. Chance of precipitation is 100%. Little or no snow and sleet accumulation expected.
Tuesday Night
Mostly clear, with a low around 27. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 42. Northwest wind around 6 mph becoming light and variable in the afternoon.
Wednesday Night
Mostly clear, with a low around 25. Light and variable wind.
Thursday
Partly sunny, with a high near 43.
Thursday Night
Partly cloudy, with a low around 20.
Friday
Mostly cloudy, with a high near 34.
Friday Night
A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 44.
Saturday Night
Mostly cloudy, with a low around 28.
Sunday
Partly sunny, with a high near 41.
Sunday Night
Mostly cloudy, with a low around 25.
Monday
Partly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Chantilly VA
 38.84°N 77.38°W (Elev. 449 ft)
Last Update:
12:53 am EST Dec 2, 2025
Forecast Valid:
1am EST Dec 2, 2025-6pm EST Dec 8, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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