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.

Overcast

53°F

12°C

Humidity 66%
Wind Speed N 16 G 21 mph
Barometer 29.51 in (999.2 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 12 Nov 9:52 pm EST
Extended Forecast for

2 Miles SW Herndon VA

  • Tonight

    Tonight: 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 49. North wind 15 to 17 mph, with gusts as high as 28 mph.

    High: 49 °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 50. Northwest wind 9 to 16 mph, with gusts as high as 26 mph.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. Northwest wind 8 to 10 mph, with gusts as high as 20 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 35.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
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 49. North wind 15 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 50. Northwest wind 9 to 16 mph, with gusts as high as 26 mph.
Saturday Night
Partly cloudy, with a low around 36. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 54.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 56.
Tuesday Night
Clear, with a low around 31.
Wednesday
Sunny, with a high near 60.
Wednesday Night
Clear, with a low around 31.
Thursday
Sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Herndon VA
 38.95°N 77.42°W (Elev. 351 ft)
Last Update:
9:53 pm EST Nov 12, 2026
Forecast Valid:
11pm EST Nov 12, 2026-6pm EST Nov 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation