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

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

60°F

16°C

Humidity 47%
Wind Speed Calm
Barometer 30.29 in (1026.0 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 11 Apr 8:55 pm EDT
Extended Forecast for

Mount Vernon VA

  • Tonight

    Tonight: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 72. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 72 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58. Southeast wind around 9 mph.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 86. Southwest wind 11 to 14 mph, with gusts as high as 26 mph.

    High: 86 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of showers before 2am. Partly cloudy, with a low around 65. Southwest wind 3 to 7 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 47. Calm wind.
Sunday
Sunny, with a high near 72. Light and variable wind becoming south 5 to 10 mph in the morning.
Sunday Night
Partly cloudy, with a low around 58. Southeast wind around 9 mph.
Monday
Partly sunny, with a high near 86. Southwest wind 11 to 14 mph, with gusts as high as 26 mph.
Monday Night
A slight chance of showers before 2am. Partly cloudy, with a low around 65. Southwest wind 3 to 7 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Mostly sunny, with a high near 94.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
Partly sunny, with a high near 94.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 87. Chance of precipitation is 30%.
Friday Night
A chance of showers. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon VA
 38.72°N 77.11°W (Elev. 36 ft)
Last Update:
8:04 pm EDT Apr 11, 2026
Forecast Valid:
9pm EDT Apr 11, 2026-6pm EDT Apr 18, 2026
 
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