Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

A Few Clouds

81°F

27°C

Humidity 77%
Wind Speed SE 6 mph
Barometer 29.91 in (1013.1 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 16 Aug 5:55 pm EDT
Extended Forecast for

Lorton VA

Flood Watch August 16, 07:00pm until August 17, 03:00am
Severe T-storm Watch until August 16, 11:00pm
Click here for hazard details and duration
Flood Watch
...
  •  
    Severe T-storm Watch until August 16, 11:00pm

    NOW until 11:00pm Sun

    Severe T-storm Watch

  • Tonight

    Low: 72 °F

    Severe
    Thunderstorms

  • Monday

    Monday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 90. Northwest wind 6 to 9 mph.  Chance of precipitation is 30%.

    High: 90 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and midnight.  Increasing clouds, with a low around 71. North wind 3 to 6 mph.  Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 87. North wind around 7 mph.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68. Light and variable wind.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 71. Chance of precipitation is 20%.

    Low: 71 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 87. Chance of precipitation is 50%.

    High: 87 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Tonight
Showers and thunderstorms before 9pm, then showers likely and possibly a thunderstorm between 9pm and 2am, then a slight chance of showers after 2am. Some of the storms could be severe. Low around 72. Southwest wind 5 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Northwest wind 6 to 9 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and midnight. Increasing clouds, with a low around 71. North wind 3 to 6 mph. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 87. North wind around 7 mph.
Tuesday Night
Mostly clear, with a low around 68. Light and variable wind.
Wednesday
Sunny, with a high near 89.
Wednesday Night
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71. Chance of precipitation is 20%.
Thursday
A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Sunday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Lorton VA
 38.71°N 77.23°W (Elev. 125 ft)
5:29 pm EDT Aug 16, 2026
6pm EDT Aug 16, 2026-6pm EDT Aug 23, 2026
 
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Additional Resources

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