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

50°F

10°C

Humidity 33%
Wind Speed SE 10 mph
Barometer 30.01 in (1016.6 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 13 Jan 11:55 am EST
Extended Forecast for

Fairfax Station VA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 51. South wind 7 to 9 mph.

    High: 51 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of rain after 1am. Mostly cloudy, with a low around 40. Southwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 40 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: A chance of rain, mainly after 1pm. Cloudy, with a high near 52. Southwest wind around 6 mph. Chance of precipitation is 40%.

    High: 52 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 4am, then a chance of snow. Mostly cloudy, with a low around 25. Light and variable wind becoming northwest 12 to 17 mph in the evening. Winds could gust as high as 30 mph. Chance of precipitation is 50%.

    Low: 25 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Thursday

    Thursday: A chance of snow before 7am. Mostly sunny, with a high near 31. Northwest wind 15 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.

    High: 31 °F

    Chance Snow
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 51. South wind 7 to 9 mph.
Tonight
A slight chance of rain after 1am. Mostly cloudy, with a low around 40. Southwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday
A chance of rain, mainly after 1pm. Cloudy, with a high near 52. Southwest wind around 6 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of rain before 4am, then a chance of snow. Mostly cloudy, with a low around 25. Light and variable wind becoming northwest 12 to 17 mph in the evening. Winds could gust as high as 30 mph. Chance of precipitation is 50%.
Thursday
A chance of snow before 7am. Mostly sunny, with a high near 31. Northwest wind 15 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 17.
Friday
Mostly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Partly sunny, with a high near 34.
Sunday Night
Partly cloudy, with a low around 19.
M.L.King Day
Mostly sunny, with a high near 33.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fairfax Station VA
 38.79°N 77.33°W (Elev. 410 ft)
Last Update:
9:54 am EST Jan 13, 2026
Forecast Valid:
12pm EST Jan 13, 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