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

32°F

0°C

Humidity 66%
Wind Speed Calm
Barometer 30.14 in (1021.0 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 12 Jan 8:55 pm EST
Extended Forecast for

Franconia VA

  • Tonight

    Tonight: Mostly clear, with a low around 31. Calm wind becoming southwest around 5 mph.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 50. Calm wind becoming south 5 to 9 mph in the morning.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40. Southwest wind 7 to 11 mph.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain, mainly after 1pm. Mostly cloudy, with a high near 52. South wind around 6 mph. Chance of precipitation is 30%.

    High: 52 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely before 4am, then rain and snow likely. Mostly cloudy, with a low around 30. Light and variable wind becoming northwest 5 to 10 mph in the evening. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 30 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: Snow likely, possibly mixed with rain, mainly before 7am. Partly sunny, with a high near 35. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 35 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 31. Calm wind becoming southwest around 5 mph.
Tuesday
Sunny, with a high near 50. Calm wind becoming south 5 to 9 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 40. Southwest wind 7 to 11 mph.
Wednesday
A chance of rain, mainly after 1pm. Mostly cloudy, with a high near 52. South wind around 6 mph. Chance of precipitation is 30%.
Wednesday Night
Rain likely before 4am, then rain and snow likely. Mostly cloudy, with a low around 30. Light and variable wind becoming northwest 5 to 10 mph in the evening. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
Snow likely, possibly mixed with rain, mainly before 7am. Partly sunny, with a high near 35. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
Partly cloudy, with a low around 20.
Friday
Mostly sunny, with a high near 35.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Partly sunny, with a high near 34.
Sunday Night
Mostly clear, with a low around 17.
M.L.King Day
Mostly sunny, with a high near 32.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Franconia VA
 38.77°N 77.16°W (Elev. 197 ft)
Last Update:
8:32 pm EST Jan 12, 2026
Forecast Valid:
9pm EST Jan 12, 2026-6pm EST Jan 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation