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.

Mostly Cloudy

78°F

26°C

Humidity 38%
Wind Speed S 6 mph
Barometer 29.58 in (1001.9 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 12 Mar 2:55 am EDT
Extended Forecast for

Annandale VA

  • Overnight

    Overnight: A chance of rain, mainly after 4am. Mostly cloudy, with a low around 43. Southwest wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    Low: 43 °F

    Chance Rain

  • Thursday

    Thursday: Rain before 11am, then rain and snow. Temperature falling to around 35 by 1pm. Breezy, with a northwest wind 11 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 46 °F⇓

    Rain/Snow and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31. Northwest wind 5 to 9 mph becoming light west after midnight.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 53. Breezy, with a south wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 53 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 41. Southwest wind 9 to 17 mph, with gusts as high as 31 mph.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.

    Low: 54 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Overnight
A chance of rain, mainly after 4am. Mostly cloudy, with a low around 43. Southwest wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Thursday
Rain before 11am, then rain and snow. Temperature falling to around 35 by 1pm. Breezy, with a northwest wind 11 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday Night
Mostly clear, with a low around 31. Northwest wind 5 to 9 mph becoming light west after midnight.
Friday
Mostly sunny, with a high near 53. Breezy, with a south wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 39 mph.
Friday Night
Mostly clear, with a low around 41. Southwest wind 9 to 17 mph, with gusts as high as 31 mph.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
Mostly cloudy, with a high near 61.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Monday
Showers. High near 69. Chance of precipitation is 90%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Tuesday
Mostly sunny, with a high near 40.
Tuesday Night
Mostly clear, with a low around 26.
Wednesday
Mostly sunny, with a high near 44.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Annandale VA
 38.82°N 77.21°W (Elev. 331 ft)
Last Update:
3:14 am EDT Mar 12, 2026
Forecast Valid:
3am EDT Mar 12, 2026-6pm EDT Mar 18, 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