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

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

70°F

21°C

Humidity 52%
Wind Speed Calm
Barometer 30.30 in (1026.3 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 10 Oct 4:55 pm EDT
Extended Forecast for

2 Miles S Fairfax VA

  • Tonight

    Tonight: Showers likely, mainly after 3am. Cloudy, with a low around 60. East wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 60 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 2pm. High near 69. East wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 69 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Low around 63. East wind 5 to 7 mph becoming west after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Showers

  • Columbus Day

    Columbus Day: Partly sunny, with a high near 71. Northwest wind 11 to 14 mph, with gusts as high as 24 mph.

    High: 71 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. Northwest wind 3 to 5 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers likely, mainly after 3am. Cloudy, with a low around 60. East wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Showers, with thunderstorms also possible after 2pm. High near 69. East wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Low around 63. East wind 5 to 7 mph becoming west after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Columbus Day
Partly sunny, with a high near 71. Northwest wind 11 to 14 mph, with gusts as high as 24 mph.
Monday Night
Mostly clear, with a low around 57. Northwest wind 3 to 5 mph.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 20%.
Friday
A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Fairfax VA
 38.83°N 77.29°W (Elev. 348 ft)
Last Update:
4:53 pm EDT Oct 10, 2026
Forecast Valid:
5pm EDT Oct 10, 2026-6pm EDT Oct 17, 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