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.

Overcast

29°F

-2°C

Humidity 43%
Wind Speed N 6 mph
Barometer 30.39 in (1029.5 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 18 Mar 7:55 am EDT
Extended Forecast for

Franconia VA

  • Today

    Today: Cloudy through mid morning, then gradual clearing, with a high near 43. North wind 5 to 7 mph becoming light and variable.

    High: 43 °F

    Gradual
    Clearing

  • Tonight

    Tonight: Partly cloudy, with a low around 32. Southeast wind 3 to 5 mph.

    Low: 32 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 54. South wind 3 to 7 mph.

    High: 54 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 39. Southeast wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Decreasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 61. Calm wind becoming south around 6 mph in the afternoon.

    High: 61 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 49. Chance of precipitation is 50%.

    Low: 49 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 43. North wind 5 to 7 mph becoming light and variable.
Tonight
Partly cloudy, with a low around 32. Southeast wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 54. South wind 3 to 7 mph.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 39. Southeast wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 61. Calm wind becoming south around 6 mph in the afternoon.
Friday Night
A chance of showers. Mostly cloudy, with a low around 49. Chance of precipitation is 50%.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Partly sunny, with a high near 73.
Sunday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Partly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Franconia VA
 38.79°N 77.13°W (Elev. 249 ft)
Last Update:
7:53 am EDT Mar 18, 2026
Forecast Valid:
8am EDT Mar 18, 2026-6pm EDT Mar 24, 2026
 
Forecast Discussion
 
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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