National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

A Few Clouds

43°F

6°C

Humidity 60%
Wind Speed Vrbl 7 mph
Barometer 30.03 in (1017.0 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 17 Jan 2:52 pm EST
Extended Forecast for

Chantilly VA

  • Tonight

    Tonight: A slight chance of snow before 2am, then a chance of rain between 2am and 3am, then rain and snow likely after 3am. Increasing clouds, with a low around 31. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 31 °F

    Partly Cloudy
    then
    Rain/Snow
    Likely

  • Sunday

    Sunday: Snow likely, possibly mixed with rain, becoming all snow after 8am. Cloudy, with a high near 34. North wind 6 to 8 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 34 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 20. Northwest wind around 6 mph becoming calm in the evening.

    Low: 20 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 39. South wind 6 to 13 mph becoming west in the afternoon. Winds could gust as high as 23 mph.

    High: 39 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 15. Northwest wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 15 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 28.

    High: 28 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of snow before 2am, then a chance of rain between 2am and 3am, then rain and snow likely after 3am. Increasing clouds, with a low around 31. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Sunday
Snow likely, possibly mixed with rain, becoming all snow after 8am. Cloudy, with a high near 34. North wind 6 to 8 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Sunday Night
Partly cloudy, with a low around 20. Northwest wind around 6 mph becoming calm in the evening.
M.L.King Day
Sunny, with a high near 39. South wind 6 to 13 mph becoming west in the afternoon. Winds could gust as high as 23 mph.
Monday Night
Partly cloudy, with a low around 15. Northwest wind 8 to 10 mph, with gusts as high as 18 mph.
Tuesday
Sunny, with a high near 28.
Tuesday Night
Mostly clear, with a low around 13.
Wednesday
Sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
Partly sunny, with a high near 43.
Thursday Night
Mostly clear, with a low around 21.
Friday
Mostly sunny, with a high near 37.
Friday Night
Mostly cloudy, with a low around 26.
Saturday
A chance of rain and snow. Partly sunny, with a high near 39. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chantilly VA
 38.88°N 77.43°W (Elev. 299 ft)
Last Update:
2:22 pm EST Jan 17, 2026
Forecast Valid:
3pm EST Jan 17, 2026-6pm EST Jan 24, 2026
 
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