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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

78°F

26°C

Humidity 77%
Wind Speed NW 5 mph
Barometer 29.96 in (1014.8 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 28 Aug 8:55 am EDT
Extended Forecast for

Fort Belvoir VA

  • Today

    Today: A slight chance of showers and thunderstorms after 11am. Partly sunny, with a high near 87. Calm wind becoming north around 5 mph. Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 66. North wind 3 to 5 mph.

    Low: 66 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 85. Northeast wind 5 to 8 mph.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66. East wind 3 to 5 mph.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 88. South wind 5 to 8 mph.

    High: 88 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 72.

    Low: 72 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers and thunderstorms after 11am. Partly sunny, with a high near 87. Calm wind becoming north around 5 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 66. North wind 3 to 5 mph.
Saturday
Mostly sunny, with a high near 85. Northeast wind 5 to 8 mph.
Saturday Night
Partly cloudy, with a low around 66. East wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 88. South wind 5 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 72.
Monday
Mostly sunny, with a high near 91.
Monday Night
Partly cloudy, with a low around 74.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Partly cloudy, with a low around 76.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 94. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 75. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Belvoir VA
 38.72°N 77.14°W (Elev. 98 ft)
Last Update:
7:52 am EDT Aug 28, 2026
Forecast Valid:
9am EDT Aug 28, 2026-6pm EDT Sep 3, 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