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Heavy Snow in the Sierra Nevada; Heavy Rainfall in Texas Sunday

Heavy snow is expected in the Sierra Nevada mountain ranges into Saturday causing hazardous travel conditions. Winter Storm Warnings have been issued. Thunderstorms and moderate to heavy rainfall are expected across portions of eastern Texas into Louisiana on Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Overcast

51°F

11°C

Humidity 45%
Wind Speed NW 12 G 21 mph
Barometer 29.69 in (1005.7 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 13 Nov 3:55 pm EST
Extended Forecast for

Mount Vernon VA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 36. Northwest wind 5 to 7 mph.

    Low: 36 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Increasing clouds, with a high near 52. Northwest wind 8 to 17 mph, with gusts as high as 28 mph.

    High: 52 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming clear, with a low around 39. West wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 39 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Increasing clouds, with a high near 55. Northwest wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 55 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36. Northwest wind around 6 mph.

    Low: 36 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 34.

    Low: 34 °F

    Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 36. Northwest wind 5 to 7 mph.
Saturday
Increasing clouds, with a high near 52. Northwest wind 8 to 17 mph, with gusts as high as 28 mph.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around 39. West wind 7 to 9 mph, with gusts as high as 18 mph.
Sunday
Increasing clouds, with a high near 55. Northwest wind 7 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 36. Northwest wind around 6 mph.
Monday
Sunny, with a high near 57.
Monday Night
Mostly clear, with a low around 35.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Clear, with a low around 34.
Wednesday
Sunny, with a high near 63.
Wednesday Night
Clear, with a low around 35.
Thursday
Sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Mostly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon VA
 38.74°N 77.11°W (Elev. 49 ft)
Last Update:
3:53 pm EST Nov 13, 2026
Forecast Valid:
4pm EST Nov 13, 2026-6pm EST Nov 20, 2026
 
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