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.

Mostly Cloudy

42°F

6°C

Humidity 93%
Wind Speed Calm
Barometer 30.21 in (1023.3 mb)
Dewpoint 40°F (4°C)
Visibility 9.00 mi
Last update 9 Jan 8:55 am EST
Extended Forecast for

Fairfax Station VA

  • Today

    Today: Rain likely, mainly after 4pm. Cloudy, with a high near 57. South wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Mostly Cloudy
    then Rain
    Likely

  • Tonight

    Tonight: Rain likely before 9pm, then a chance of rain after 5am. Cloudy, with a low around 46. Southwest wind 5 to 9 mph becoming north after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Rain Likely
    then Chance
    Rain

  • Saturday

    Saturday: Rain, mainly after 7am. High near 51. Northeast wind 5 to 7 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 51 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before 1am. Cloudy, with a low around 41. Northwest wind 5 to 9 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Rain Likely

  • Sunday

    Sunday: A slight chance of rain. Mostly sunny, with a high near 46. West wind 10 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

Detailed Forecast

Today
Rain likely, mainly after 4pm. Cloudy, with a high near 57. South wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain likely before 9pm, then a chance of rain after 5am. Cloudy, with a low around 46. Southwest wind 5 to 9 mph becoming north after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain, mainly after 7am. High near 51. Northeast wind 5 to 7 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Rain likely, mainly before 1am. Cloudy, with a low around 41. Northwest wind 5 to 9 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A slight chance of rain. Mostly sunny, with a high near 46. West wind 10 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 29.
Monday
Sunny, with a high near 44.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Mostly cloudy, with a high near 50.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Thursday
A chance of rain. Mostly cloudy, with a high near 41. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfax Station VA
 38.8°N 77.3°W (Elev. 348 ft)
Last Update:
6:53 am EST Jan 9, 2026
Forecast Valid:
9am EST Jan 9, 2026-6pm EST Jan 15, 2026
 
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Additional Resources

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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