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

Tracking Atmospheric River for the West Coast; Space Weather Storming Continues

An atmospheric river will bring threats of gusty to high winds and heavy rainfall to California mainly Thursday into Saturday which may bring areas of flooding and wind damage. Heavy snow will be possible over the Sierra Nevada mountains Thursday into Friday associated with the atmospheric river. Minor to severe geomagnetic storming (space weather) is expected to continue into early Thursday. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

A Few Clouds

63°F

17°C

Humidity 27%
Wind Speed W 5 mph
Barometer 29.75 in (1007.7 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 12 Nov 2:55 pm EST
Extended Forecast for

Mount Vernon VA

  • Tonight

    Tonight: Mostly clear, with a low around 39. West wind around 7 mph, with gusts as high as 18 mph.

    Low: 39 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 58. Northwest wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 58 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34. West wind 3 to 6 mph.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 58. West wind 3 to 8 mph.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 35. Light north wind.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of rain after 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 40%.

    Low: 51 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 39. West wind around 7 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 58. Northwest wind 6 to 14 mph, with gusts as high as 23 mph.
Thursday Night
Mostly clear, with a low around 34. West wind 3 to 6 mph.
Friday
Sunny, with a high near 58. West wind 3 to 8 mph.
Friday Night
Partly cloudy, with a low around 35. Light north wind.
Saturday
Partly sunny, with a high near 60.
Saturday Night
A chance of rain after 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 40.
Monday
Sunny, with a high near 56.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
A chance of rain. Partly sunny, with a high near 53. Chance of precipitation is 30%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 40. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon VA
 38.72°N 77.08°W (Elev. 13 ft)
Last Update:
12:30 pm EST Nov 12, 2025
Forecast Valid:
3pm EST Nov 12, 2025-6pm EST Nov 19, 2025
 
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