Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

85°F

29°C

Humidity 49%
Wind Speed SE 7 mph
Barometer 30.03 in (1017.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 26 Aug 1:55 pm EDT
Extended Forecast for

2 Miles NNW Potomac Heights MD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 85. South wind around 8 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 74. Southeast wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 74 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly after 4pm.  Mostly sunny, with a high near 86. South wind 7 to 9 mph.  Chance of precipitation is 30%.

    High: 86 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms between 7pm and 2am, then a slight chance of showers.  Mostly cloudy, with a low around 72. South wind 5 to 7 mph becoming calm  after midnight.  Chance of precipitation is 50%.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 5pm.  Partly sunny, with a high near 84. Light and variable wind.  Chance of precipitation is 40%.

    High: 84 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am.  Mostly cloudy, with a low around 72. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 83. Chance of precipitation is 20%.

    High: 83 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 85. South wind around 8 mph.
Tonight
Mostly cloudy, with a low around 74. Southeast wind 8 to 10 mph, with gusts as high as 18 mph.
Thursday
A chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 86. South wind 7 to 9 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms between 7pm and 2am, then a slight chance of showers. Mostly cloudy, with a low around 72. South wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 50%.
Friday
A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 84. Light and variable wind. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Saturday
A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 71.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 73.
Monday
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 75.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Potomac Heights MD
 38.63°N 77.15°W (Elev. 3 ft)
10:53 am EDT Aug 26, 2026
2pm EDT Aug 26, 2026-6pm EDT Sep 1, 2026
 
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Additional Resources

Radar & Satellite Image

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