Severe Weather Possible from the Central Plains to the Northeast; Building Heat in the West; Fire Weather Concerns for the Southwest

Severe thunderstorms will be possible from the central Plains to the Mid-Atlantic and Northeast on Monday. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Hot and dry conditions will fuel fire weather concerns for Interior Alaska and the Four Corners region through Monday. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Partly Cloudy

66°F

19°C

Humidity 77%
Wind Speed Calm
Barometer 29.92 in (1013.4 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 22 Jun 2:55 am EDT
Extended Forecast for

Mount Vernon VA

  • Overnight

    Overnight: Mostly cloudy, with a low around 68. Light east wind.

    Low: 68 °F

    Mostly Cloudy

  • Monday

    Monday: Isolated showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm.  High near 91. Southeast wind 7 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Isolated
    T-storms then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 11pm, then scattered showers and thunderstorms between 11pm and 2am, then scattered showers after 2am.  Low around 68. South wind 3 to 7 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 68 °F

    Showers then
    Scattered
    Showers

  • Tuesday

    Tuesday: Isolated showers before 2pm.  Partly sunny, with a high near 82. Northwest wind 9 to 13 mph.  Chance of precipitation is 20%.

    High: 82 °F

    Isolated
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. Northwest wind 6 to 10 mph.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 89. Chance of precipitation is 30%.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 68. Chance of precipitation is 40%.

    Low: 68 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a low around 68. Light east wind.
Monday
Isolated showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 91. Southeast wind 7 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and possibly a thunderstorm before 11pm, then scattered showers and thunderstorms between 11pm and 2am, then scattered showers after 2am. Low around 68. South wind 3 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Isolated showers before 2pm. Partly sunny, with a high near 82. Northwest wind 9 to 13 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 62. Northwest wind 6 to 10 mph.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 65.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Friday
Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Sunday
A slight chance of showers. Mostly sunny, with a high near 88. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon VA
 38.72°N 77.11°W (Elev. 36 ft)
2:22 am EDT Jun 22, 2026
3am EDT Jun 22, 2026-6pm EDT Jun 28, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database