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

84°F

29°C

Humidity 19%
Wind Speed S 12 G 18 mph
Barometer 29.96 in (1014.8 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 10 Mar 2:55 pm EDT
Extended Forecast for

Annandale VA

  • Tonight

    Tonight: Mostly clear, with a low around 59. South wind 5 to 7 mph.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of rain before 3pm, then a chance of rain after 4pm. Mostly sunny, with a high near 82. South wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    High: 82 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 2am. Increasing clouds, with a low around 50. South wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Slight Chance
    Rain then
    Rain Likely

  • Thursday

    Thursday: Rain likely, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 53. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain Likely
    and Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 33. Northwest wind 5 to 9 mph becoming calm after midnight.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 59. South wind 5 to 7 mph.
Wednesday
A chance of rain before 3pm, then a chance of rain after 4pm. Mostly sunny, with a high near 82. South wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Wednesday Night
Rain likely, mainly after 2am. Increasing clouds, with a low around 50. South wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain likely, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 53. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Mostly clear, with a low around 33. Northwest wind 5 to 9 mph becoming calm after midnight.
Friday
Partly sunny, with a high near 55.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
Mostly cloudy, with a high near 67.
Sunday Night
Rain. Low around 52. Chance of precipitation is 80%.
Monday
Rain. High near 62. Chance of precipitation is 80%.
Monday Night
A chance of rain and snow. Partly cloudy, with a low around 27. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Annandale VA
 38.82°N 77.21°W (Elev. 331 ft)
Last Update:
2:35 pm EDT Mar 10, 2026
Forecast Valid:
3pm EDT Mar 10, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation