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

33°F

1°C

Humidity 78%
Wind Speed Calm
Barometer 30.09 in (1019.3 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 3 Dec 6:55 pm EST
Extended Forecast for

Accokeek MD

  • Tonight

    Tonight: Mostly clear, with a low around 29. South wind around 5 mph becoming light and variable after midnight.

    Low: 29 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 44. Light northwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 44 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 25. Northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 25 °F

    Increasing
    Clouds

  • Friday

    Friday: Snow likely, mainly after 1pm. Cloudy, with a high near 34. Light and variable wind. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 34 °F

    Snow Likely

  • Friday Night

    Friday Night: A chance of snow before 10pm, then a chance of rain or freezing rain between 10pm and 1am, then a slight chance of rain after 1am. Cloudy, with a low around 28. Light and variable wind. Chance of precipitation is 40%.

    Low: 28 °F

    Chance Wintry
    Mix

  • Saturday

    Saturday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 29. South wind around 5 mph becoming light and variable after midnight.
Thursday
Mostly sunny, with a high near 44. Light northwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Thursday Night
Increasing clouds, with a low around 25. Northwest wind 5 to 10 mph becoming light and variable after midnight.
Friday
Snow likely, mainly after 1pm. Cloudy, with a high near 34. Light and variable wind. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Friday Night
A chance of snow before 10pm, then a chance of rain or freezing rain between 10pm and 1am, then a slight chance of rain after 1am. Cloudy, with a low around 28. Light and variable wind. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 33.
Sunday
Partly sunny, with a high near 42.
Sunday Night
Mostly cloudy, with a low around 31.
Monday
Partly sunny, with a high near 37.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Accokeek MD
 38.68°N 77°W (Elev. 62 ft)
Last Update:
6:52 pm EST Dec 3, 2025
Forecast Valid:
7pm EST Dec 3, 2025-6pm EST Dec 10, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation