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

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

62°F

17°C

Humidity 94%
Wind Speed Calm
Barometer 29.77 in (1008.3 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 17 Jun 5:55 am EDT
Extended Forecast for

Annandale VA

  • Today

    Today: Sunny, with a high near 87. Southwest wind 3 to 8 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 71. South wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 71 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers between 1pm and 2pm. Mostly sunny, with a high near 93. South wind 13 to 17 mph becoming west in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 20%.

    High: 93 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. West wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    Showers

  • Juneteenth

    Juneteenth: A chance of showers, mainly before 8am. Mostly sunny, with a high near 85. Northwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers

  • Friday Night

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

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Saturday Night

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

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 87. Southwest wind 3 to 8 mph.
Tonight
Partly cloudy, with a low around 71. South wind 6 to 9 mph, with gusts as high as 20 mph.
Thursday
A slight chance of showers between 1pm and 2pm. Mostly sunny, with a high near 93. South wind 13 to 17 mph becoming west in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. West wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.
Juneteenth
A chance of showers, mainly before 8am. Mostly sunny, with a high near 85. Northwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 63.
Saturday
Sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 87.
Sunday Night
A slight chance of showers and thunderstorms, then a chance of showers after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Monday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 87. Chance of precipitation is 70%.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Annandale VA
 38.84°N 77.21°W (Elev. 299 ft)
Last Update:
4:53 am EDT Jun 17, 2026
Forecast Valid:
7am EDT Jun 17, 2026-6pm EDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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