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

Widespread Precipitation and Gusty Winds in the West; Snow from the Great Lakes to the Northeast

A Pacific storm system is expected to bring strong winds and more precipitation to the western U.S., along with the likelihood of snowfall into the Sierra Nevada. Accumulating snow will develop downwind from the Great Lakes into parts of the Northeast through Saturday. Polar air will surge into the eastern half of the country this weekend. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Partly Cloudy

49°F

9°C

Humidity 69%
Wind Speed NW 12 mph
Barometer 29.53 in (999.8 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 12 Nov 11:52 pm EST
Extended Forecast for

Herndon VA

  • Overnight

    Overnight: Mostly cloudy, with a low around 42. Northwest wind around 14 mph, with gusts as high as 24 mph.

    Low: 42 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 48. North wind 14 to 17 mph, with gusts as high as 28 mph.

    High: 48 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34. North wind 7 to 11 mph, with gusts as high as 18 mph.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 49. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.

    High: 49 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. Northwest wind around 9 mph, with gusts as high as 18 mph.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 42. Northwest wind around 14 mph, with gusts as high as 24 mph.
Friday
Mostly cloudy, with a high near 48. North wind 14 to 17 mph, with gusts as high as 28 mph.
Friday Night
Mostly cloudy, with a low around 34. North wind 7 to 11 mph, with gusts as high as 18 mph.
Saturday
Mostly sunny, with a high near 49. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 36. Northwest wind around 9 mph, with gusts as high as 18 mph.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 31.
Tuesday
Sunny, with a high near 56.
Tuesday Night
Clear, with a low around 30.
Wednesday
Sunny, with a high near 60.
Wednesday Night
Clear, with a low around 31.
Thursday
Sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Herndon VA
 38.99°N 77.38°W (Elev. 318 ft)
Last Update:
9:53 pm EST Nov 12, 2026
Forecast Valid:
12am EST Nov 13, 2026-6pm EST Nov 19, 2026
 
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Additional Resources

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National Digital Forecast Database

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Chance of Precipitation