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.

Light Drizzle

55°F

13°C

Humidity 69%
Wind Speed N 7 mph
Barometer 30.03 in (1017.2 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 27 Mar 2:55 pm EDT
Extended Forecast for

Mount Vernon VA

  • This Afternoon

    This Afternoon: Showers. Steady temperature around 49. North wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Showers

  • Tonight

    Tonight: A chance of rain showers and flurries before 2am, then a chance of flurries after 3am. Cloudy, then gradually becoming partly cloudy, with a low around 33. North wind 3 to 8 mph. Chance of precipitation is 30%.

    Low: 33 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 50. North wind 10 to 13 mph, with gusts as high as 24 mph.

    High: 50 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32. Light and variable wind.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 61. South wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 61 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers. Steady temperature around 49. North wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of rain showers and flurries before 2am, then a chance of flurries after 3am. Cloudy, then gradually becoming partly cloudy, with a low around 33. North wind 3 to 8 mph. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 50. North wind 10 to 13 mph, with gusts as high as 24 mph.
Saturday Night
Mostly clear, with a low around 32. Light and variable wind.
Sunday
Mostly sunny, with a high near 61. South wind 6 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
Partly sunny, with a high near 71.
Monday Night
Mostly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
A chance of rain. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 52. Chance of precipitation is 50%.
Thursday
A chance of rain. Mostly cloudy, with a high near 62. Chance of precipitation is 40%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Friday
Rain likely. Mostly cloudy, with a high near 62.
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:
2:23 pm EDT Mar 27, 2026
Forecast Valid:
4pm EDT Mar 27, 2026-6pm EDT Apr 3, 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