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

69°F

21°C

Humidity 28%
Wind Speed NW 10 mph
Barometer 30.26 in (1025.0 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 11 Apr 1:55 pm EDT
Extended Forecast for

3 Miles SE Mount Vernon VA

  • Tonight

    Tonight: Mostly clear, with a low around 47. North wind 5 to 8 mph becoming calm in the evening.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 71. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 71 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 59. Southeast wind around 9 mph, with gusts as high as 18 mph.

    Low: 59 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 86. Southwest wind around 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 8 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67.

    Low: 67 °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. North wind 5 to 8 mph becoming calm in the evening.
Sunday
Sunny, with a high near 71. Light and variable wind becoming south 5 to 10 mph in the morning.
Sunday Night
Partly cloudy, with a low around 59. Southeast wind around 9 mph, with gusts as high as 18 mph.
Monday
Partly sunny, with a high near 86. Southwest wind around 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 8 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 89.
Tuesday Night
Partly cloudy, with a low around 67.
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 86. 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:
3 Miles SE Mount Vernon VA
 38.69°N 77.06°W (Elev. 144 ft)
Last Update:
2:23 pm EDT Apr 11, 2026
Forecast Valid:
4pm EDT Apr 11, 2026-6pm EDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation