Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72° N Lon: 77.18° W Elev: 69 ft.

Fair

48°F

9°C

Humidity 88%
Wind Speed Calm
Barometer 29.84 in (1010.8 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 7 May 9:55 pm EDT
Detailed forecast for

Fairfax County

Tonight
Mostly cloudy this evening, then clearing. Lows in the mid 40s. Southwest winds around 5 mph, becoming northwest after midnight.
Friday
Sunny. Highs in the lower 70s. West winds 5 to 10 mph.
Friday Night
Mostly cloudy. Lows in the lower 50s. South winds 5 to 10 mph.
Saturday
Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. Highs in the mid 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.
Saturday Night
Mostly clear. Lows in the mid 50s. Southwest winds 5 to 10 mph.
Sunday
Mostly sunny. Highs in the upper 70s.
Sunday Night
Showers. Lows in the lower 50s. Chance of rain 80 percent.
Monday
Partly sunny with a 50 percent chance of showers. Highs in the mid 60s.
Monday Night
Partly cloudy. Lows in the mid 40s.
Tuesday
Sunny. Highs in the upper 60s.
Tuesday Night
Mostly cloudy. Lows around 50.
Wednesday
Showers likely. Highs in the lower 70s. Chance of rain 60 percent.
Wednesday Night
Mostly cloudy with a 50 percent chance of showers. Lows in the lower 50s.
Thursday
Mostly sunny with a 30 percent chance of showers. Highs in the lower 70s.



Basemap Options
Click map to change the forecast location
Loading map...
757 PM EDT Thu May 7 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database