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

55°F

13°C

Humidity 18%
Wind Speed NW 13 G 21 mph
Barometer 30.10 in (1019.6 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 14 Mar 10:55 am EDT
Extended Forecast for

Mount Vernon VA

  • Today

    Today: Mostly sunny, with a high near 58. West wind 11 to 13 mph, with gusts as high as 21 mph.

    High: 58 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 41. Light and variable wind.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 61. Southeast wind 6 to 14 mph, with gusts as high as 25 mph.

    High: 61 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers. Low around 54. Southeast wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 73. Breezy, with a south wind 14 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 100%.

    High: 73 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 8pm, then showers likely between 8pm and 2am. Low around 31. Chance of precipitation is 80%.

    Low: 31 °F

    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 58. West wind 11 to 13 mph, with gusts as high as 21 mph.
Tonight
Partly cloudy, with a low around 41. Light and variable wind.
Sunday
Mostly cloudy, with a high near 61. Southeast wind 6 to 14 mph, with gusts as high as 25 mph.
Sunday Night
Showers. Low around 54. Southeast wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers, with thunderstorms also possible after 2pm. High near 73. Breezy, with a south wind 14 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 100%.
Monday Night
Showers and possibly a thunderstorm before 8pm, then showers likely between 8pm and 2am. Low around 31. Chance of precipitation is 80%.
Tuesday
Mostly sunny, with a high near 40.
Tuesday Night
Mostly clear, with a low around 25.
Wednesday
Partly sunny, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 55.
Thursday Night
Mostly clear, with a low around 38.
Friday
Mostly sunny, with a high near 61.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon VA
 38.74°N 77.11°W (Elev. 49 ft)
Last Update:
10:53 am EDT Mar 14, 2026
Forecast Valid:
11am EDT Mar 14, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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