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

68°F

20°C

Humidity 49%
Wind Speed NW 9 mph
Barometer 29.88 in (1012.1 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 21 Mar 12:55 pm EDT
Extended Forecast for

Annandale VA

  • This Afternoon

    This Afternoon: Sunny, with a high near 67. North wind around 6 mph.

    High: 67 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 48. Southeast wind around 6 mph.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 81. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 81 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain, then rain likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 51. South wind around 9 mph becoming west after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Chance Rain
    then Rain
    Likely

  • Monday

    Monday: Rain likely, mainly before 8am. Partly sunny, with a high near 57. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 57 °F

    Rain Likely
    then Chance
    Rain

  • Monday Night

    Monday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 67. North wind around 6 mph.
Tonight
Partly cloudy, with a low around 48. Southeast wind around 6 mph.
Sunday
Partly sunny, with a high near 81. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Sunday Night
A chance of rain, then rain likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 51. South wind around 9 mph becoming west after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Rain likely, mainly before 8am. Partly sunny, with a high near 57. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 52.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
Mostly cloudy, with a low around 43.
Thursday
Partly sunny, with a high near 65.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 49. Chance of precipitation is 50%.
Friday
A chance of rain. Partly sunny, with a high near 60. Chance of precipitation is 30%.
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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:
10:53 am EDT Mar 21, 2026
Forecast Valid:
1pm EDT Mar 21, 2026-6pm EDT Mar 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation