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

85°F

29°C

Humidity 60%
Wind Speed SE 6 mph
Barometer 30.11 in (1019.9 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 11 Aug 6:55 pm EDT
Extended Forecast for

Annandale VA

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 72. Southeast wind 5 to 8 mph becoming calm after midnight.

    Low: 72 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 91. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 91 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 74. South wind around 6 mph.

    Low: 74 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 91. Southwest wind 3 to 6 mph. Chance of precipitation is 50%.

    High: 91 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 73. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 30%.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 72. Southeast wind 5 to 8 mph becoming calm after midnight.
Tuesday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 91. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 74. South wind around 6 mph.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 91. Southwest wind 3 to 6 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 73. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 72.
Saturday
Sunny, with a high near 91.
Saturday Night
Mostly clear, with a low around 72.
Sunday
Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 74.
Monday
Mostly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Annandale VA
 38.84°N 77.18°W (Elev. 374 ft)
Last Update:
4:30 pm EDT Aug 11, 2025
Forecast Valid:
6pm EDT Aug 11, 2025-6pm EDT Aug 18, 2025
 
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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