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

38°F

3°C

Humidity 78%
Wind Speed S 3 mph
Barometer 30.07 in (1018.6 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 7 Dec 4:55 pm EST
Extended Forecast for

Franconia VA

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Calm wind becoming north 5 to 9 mph after midnight.

    Low: 27 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of snow between 8am and 4pm. Mostly cloudy, with a high near 32. North wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 32 °F

    Slight Chance
    Snow

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 19. Northeast wind around 6 mph becoming calm in the evening.

    Low: 19 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 37. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 37 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32. South wind around 9 mph.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 50.

    High: 50 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.

    Low: 30 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 27. Calm wind becoming north 5 to 9 mph after midnight.
Monday
A slight chance of snow between 8am and 4pm. Mostly cloudy, with a high near 32. North wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 19. Northeast wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 37. Calm wind becoming south 5 to 9 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 32. South wind around 9 mph.
Wednesday
Mostly cloudy, with a high near 50.
Wednesday Night
Mostly cloudy, with a low around 35.
Thursday
Mostly sunny, with a high near 46.
Thursday Night
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Friday
A chance of rain and snow before 1pm. Partly sunny, with a high near 40. Chance of precipitation is 30%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 34.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Franconia VA
 38.79°N 77.16°W (Elev. 200 ft)
Last Update:
3:53 pm EST Dec 7, 2025
Forecast Valid:
6pm EST Dec 7, 2025-6pm EST Dec 14, 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