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

41°F

5°C

Humidity 88%
Wind Speed S 3 mph
Barometer 30.24 in (1024.3 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 9 Jan 1:55 am EST
Extended Forecast for

Annandale VA

  • Overnight

    Overnight: Mostly cloudy, with a low around 39. South wind around 6 mph.

    Low: 39 °F

    Mostly Cloudy

  • Friday

    Friday: Rain likely, mainly after 4pm. Increasing clouds, with a high near 56. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Partly Sunny
    then Rain
    Likely

  • Friday Night

    Friday Night: Rain likely before 9pm, then a slight chance of rain after 5am. Cloudy, with a low around 46. Southwest wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Rain Likely
    then Cloudy

  • Saturday

    Saturday: Rain, mainly after 7am. High near 51. Northeast wind 3 to 7 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 51 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before 1am. Cloudy, with a low around 41. Northwest wind 5 to 9 mph. Chance of precipitation is 70%.

    Low: 41 °F

    Rain Likely

  • Sunday

    Sunday: A slight chance of rain. Mostly sunny, with a high near 46. Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 39. South wind around 6 mph.
Friday
Rain likely, mainly after 4pm. Increasing clouds, with a high near 56. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain likely before 9pm, then a slight chance of rain after 5am. Cloudy, with a low around 46. Southwest wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain, mainly after 7am. High near 51. Northeast wind 3 to 7 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Rain likely, mainly before 1am. Cloudy, with a low around 41. Northwest wind 5 to 9 mph. Chance of precipitation is 70%.
Sunday
A slight chance of rain. Mostly sunny, with a high near 46. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 29.
Monday
Sunny, with a high near 44.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
Partly cloudy, with a low around 36.
Wednesday
Mostly cloudy, with a high near 49.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 41. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Annandale VA
 38.84°N 77.21°W (Elev. 299 ft)
Last Update:
1:56 am EST Jan 9, 2026
Forecast Valid:
2am EST Jan 9, 2026-6pm EST Jan 15, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation