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

Heat and Fire Weather Concerns West; Heavy Rain and Thunderstorms from Plains to mid-Atlantic

Thunderstorms and locally heavy rainfall is expected from the Central Plains to the Ohio Valley, mid-Atlantic and across the Southeast. Severe weather from the Upper Midwest to Central Plains increases on Friday. Major to Extreme HeatRisk continues across the Southern Plains to the lower Mississippi Valley late this week. Fire weather concerns for the northern Rockies and northern Plains today. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

80°F

27°C

Humidity 75%
Wind Speed NW 5 mph
Barometer 29.86 in (1011.4 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 10 Sep 7:55 pm EDT
Extended Forecast for

Annandale VA

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely after 2am. Mostly cloudy, with a low around 71. Northwest wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers likely, mainly before 9am. Mostly cloudy, with a high near 81. North wind 3 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 81 °F

    Showers
    Likely then
    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Cloudy

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 83. Southeast wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Mostly Cloudy
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.

    Low: 69 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely after 2am. Mostly cloudy, with a low around 71. Northwest wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers likely, mainly before 9am. Mostly cloudy, with a high near 81. North wind 3 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Mostly cloudy, with a low around 67. Calm wind.
Saturday
Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 83. Southeast wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.
Sunday
A chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 68.
Monday
Mostly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 86.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 65. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Annandale VA
 38.82°N 77.18°W (Elev. 272 ft)
Last Update:
7:53 pm EDT Sep 10, 2026
Forecast Valid:
8pm EDT Sep 10, 2026-6pm EDT Sep 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