Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Severe thunderstorms are expected across parts of the central and southern High Plains, central Great Lakes, and Ozarks Wednesday. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

A Few Clouds

65°F

18°C

Humidity 95%
Wind Speed Calm
Barometer 30.06 in (1018.2 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 26 Aug 1:55 am EDT
Extended Forecast for

Mount Vernon VA

  • Overnight

    Overnight: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 72. Southeast wind around 7 mph.

    Low: 72 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly between 2pm and 3pm.  Mostly sunny, with a high near 90. South wind 6 to 9 mph.  Chance of precipitation is 30%.

    High: 90 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 69. South wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 50%.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm.  Partly sunny, with a high near 87. Chance of precipitation is 40%.

    High: 87 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am.  Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 86. Chance of precipitation is 20%.

    High: 86 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 64. Calm wind.
Wednesday
Mostly sunny, with a high near 88. Calm wind becoming south 5 to 8 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 72. Southeast wind around 7 mph.
Thursday
A chance of showers and thunderstorms, mainly between 2pm and 3pm. Mostly sunny, with a high near 90. South wind 6 to 9 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 69. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Friday
A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Saturday
A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 71.
Monday
Sunny, with a high near 93.
Monday Night
Partly cloudy, with a low around 74.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 94. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon VA
 38.72°N 77.08°W (Elev. 13 ft)
2:22 am EDT Aug 26, 2026
2am EDT Aug 26, 2026-6pm EDT Sep 1, 2026
 
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Additional Resources

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