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.

A Few Clouds

12°F

-11°C

Humidity 53%
Wind Speed N 12 mph
Barometer 30.55 in (1035.1 mb)
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill-2°F (-19°C)
Last update 22 Jan 9:52 am EST
Extended Forecast for

Herndon VA

Cold Weather Advisory January 22, 10:35am until January 22, 11:00am
Click here for hazard details and duration
...
  •  
    Cold Weather Advisory January 22, 10:35am until January 22, 11:00am

    NOW until 11:00am Wed

    Cold Weather Advisory

  • Today

    High: 19 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 9. Light southeast wind.

    Low: 9 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 32. South wind 3 to 5 mph.

    High: 32 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 15 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 30. Northwest wind 6 to 9 mph.

    High: 30 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 10.

    Low: 10 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 35.

    High: 35 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 19. Northwest wind 5 to 8 mph becoming calm in the afternoon.
Tonight
Partly cloudy, with a low around 9. Light southeast wind.
Thursday
Mostly sunny, with a high near 32. South wind 3 to 5 mph.
Thursday Night
Mostly clear, with a low around 15. Calm wind becoming west around 6 mph after midnight.
Friday
Sunny, with a high near 30. Northwest wind 6 to 9 mph.
Friday Night
Mostly clear, with a low around 10.
Saturday
Sunny, with a high near 35.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Mostly cloudy, with a high near 43.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Partly sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Mostly sunny, with a high near 43.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
Herndon VA
 38.97°N 77.38°W (Elev. 354 ft)
9:30 am EST Jan 22, 2025
10am EST Jan 22, 2025-6pm EST Jan 28, 2025
 
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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