National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

91°F

33°C

Humidity 58%
Wind Speed S 7 mph
Barometer 29.84 in (1010.7 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 20 Aug 2:55 pm EDT
Extended Forecast for

2 Miles ESE Occoquan VA

Tornado Watch until August 20, 10:00pm
Click here for hazard details and duration
Tornado Watch
  •  
    Tornado Watch until August 20, 10:00pm

    NOW until 10:00pm Thu

    Tornado Watch

  • This Afternoon

    High: 89 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 8pm. Some of the storms could be severe. Patchy fog between 11pm and 2am. Otherwise, mostly cloudy, with a low around 67. North wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Severe
    Thunderstorms
    and Patchy
    Fog then
    Patchy Fog

  • Friday

    Friday: Partly sunny, with a high near 84. North wind around 5 mph becoming light and variable in the afternoon.

    High: 84 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 11am, then showers likely and possibly a thunderstorm after 11am. Cloudy, with a high near 84. Light and variable wind. Chance of precipitation is 70%.

    High: 84 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 20%.

    High: 85 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm before 5pm, then showers and thunderstorms likely after 5pm. Some of the storms could be severe. Mostly cloudy, with a high near 89. Southwest wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, mainly before 8pm. Some of the storms could be severe. Patchy fog between 11pm and 2am. Otherwise, mostly cloudy, with a low around 67. North wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Partly sunny, with a high near 84. North wind around 5 mph becoming light and variable in the afternoon.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 11am, then showers likely and possibly a thunderstorm after 11am. Cloudy, with a high near 84. Light and variable wind. Chance of precipitation is 70%.
Saturday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Sunday
A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 65.
Monday
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Occoquan VA
 38.66°N 77.23°W (Elev. 3 ft)
Last Update:
2:23 pm EDT Aug 20, 2026
Forecast Valid:
3pm EDT Aug 20, 2026-6pm EDT Aug 27, 2026
 
Forecast Discussion
 
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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