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

77°F

25°C

Humidity 29%
Wind Speed S 7 mph
Barometer 29.93 in (1013.8 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 9 Mar 5:55 pm EDT
Extended Forecast for

3 Miles SE Accokeek MD

  • Tonight

    Tonight: Clear, with a low around 49. Southwest wind 3 to 6 mph.

    Low: 49 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 60. South wind around 6 mph.

    Low: 60 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A chance of showers after 2pm. Partly sunny, with a high near 79. Southwest wind 6 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    High: 79 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers, then rain likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 45. South wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    Low: 45 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 58. Chance of precipitation is 70%.

    High: 58 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A chance of rain before 8pm. Partly cloudy, with a low around 31. Chance of precipitation is 30%.

    Low: 31 °F

    Chance Rain
    then Mostly
    Clear

  • Friday

    Friday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Friday Night

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

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 49. Southwest wind 3 to 6 mph.
Tuesday
Sunny, with a high near 78. Calm wind becoming south 5 to 8 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 60. South wind around 6 mph.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 79. Southwest wind 6 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers, then rain likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 45. South wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Thursday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 58. Chance of precipitation is 70%.
Thursday Night
A chance of rain before 8pm. Partly cloudy, with a low around 31. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 54.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Partly sunny, with a high near 58.
Saturday Night
Mostly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 68.
Sunday Night
Rain likely. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Monday
Rain likely. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Accokeek MD
 38.64°N 76.98°W (Elev. 197 ft)
Last Update:
6:27 pm EDT Mar 9, 2026
Forecast Valid:
6pm EDT Mar 9, 2026-6pm EDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation