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

54°F

12°C

Humidity 34%
Wind Speed S 5 mph
Barometer 30.20 in (1023.0 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 19 Mar 1:55 pm EDT
Extended Forecast for

Merrifield VA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 56. Southwest wind 3 to 5 mph.

    High: 56 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 38. Light south wind.

    Low: 38 °F

    Mostly Clear

  • Friday

    Friday: Scattered showers after 2pm. Increasing clouds, with a high near 67. Light south wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 30%.

    High: 67 °F

    Sunny then
    Scattered
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 48. Southwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 68. Northwest wind 6 to 8 mph.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of rain after 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    Rain

  • Monday

    Monday: A chance of rain before 8am. Mostly sunny, with a high near 62. Chance of precipitation is 30%.

    High: 62 °F

    Chance Rain
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 56. Southwest wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 38. Light south wind.
Friday
Scattered showers after 2pm. Increasing clouds, with a high near 67. Light south wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 30%.
Friday Night
Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 48. Southwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 68. Northwest wind 6 to 8 mph.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 75.
Sunday Night
A chance of rain after 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Monday
A chance of rain before 8am. Mostly sunny, with a high near 62. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Mostly sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Mostly cloudy, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Merrifield VA
 38.87°N 77.26°W (Elev. 299 ft)
Last Update:
2:22 pm EDT Mar 19, 2026
Forecast Valid:
2pm EDT Mar 19, 2026-6pm EDT Mar 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation