Rare Southern U.S. Winter Storm; Dangerous Cold Weather For Much of the Eastern U.S.; Critical Fire Weather for Southern California

A rare winter storm impacting the Southern U.S. will move offshore Wednesday morning. Behind the storm, arctic air will continue encompassing the eastern two-thirds of the Nation with only a slow return to normal temperatures expected by the end of the week. Moderate to strong Santa Ana winds and low humidity will maintain Critical fire weather conditions in southern California into Thursday. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

18°F

-8°C

Humidity 54%
Wind Speed N 5 mph
Barometer 30.48 in (1032.6 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 21 Jan 11:52 pm EST
Extended Forecast for

3 Miles SSE Chantilly VA

Cold Weather Advisory until January 22, 11:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until January 22, 11:00am

    NOW until 11:00am Wed

    Cold Weather Advisory

  • Overnight

    Low: 7 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Increasing clouds, with a high near 19. Wind chill values as low as -8. North wind 5 to 10 mph becoming light northwest  in the afternoon.

    High: 19 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 8. Light south wind.

    Low: 8 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 32. Calm wind becoming south around 6 mph.

    High: 32 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 15. Calm wind becoming northwest around 6 mph after midnight.

    Low: 15 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 36.

    High: 36 °F

    Sunny

Detailed Forecast

Overnight
Mostly cloudy, with a low around 7. Wind chill values as low as -7. Light northwest wind increasing to 6 to 11 mph. Winds could gust as high as 21 mph.
Wednesday
Increasing clouds, with a high near 19. Wind chill values as low as -8. North wind 5 to 10 mph becoming light northwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 8. Light south wind.
Thursday
Mostly sunny, with a high near 32. Calm wind becoming south around 6 mph.
Thursday Night
Mostly clear, with a low around 15. Calm wind becoming northwest around 6 mph after midnight.
Friday
Mostly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 13.
Saturday
Sunny, with a high near 36.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
Mostly cloudy, with a high near 43.
Sunday Night
Mostly cloudy, with a low around 25.
Monday
Partly sunny, with a high near 43.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Mostly sunny, with a high near 44.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Chantilly VA
 38.84°N 77.38°W (Elev. 449 ft)
12:30 am EST Jan 22, 2025
12am EST Jan 22, 2025-6pm EST Jan 28, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database