Extreme Heat Across the Southern U.S.; Severe Thunderstorms and Heavy Rain in the Plains and Mississippi Valley

A heat wave over the Southwest will intensify late week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms and heavy rain are expected over portions of the Plains and Mississippi Valley tonight, which will shift to parts of the Upper Midwest and mid-Mississippi Valley Friday. Monsoonal showers and flooding persist in the Desert Southwest. Read More >

Hazardous Weather Conditions

Current conditions at

Marshall Memorial Municipal Airport (KMHL)

Lat: 39.1°NLon: 93.2°WElev: 779ft.

Fair

79°F

26°C

Humidity 79%
Wind Speed Calm
Barometer 29.95 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 30 Jul 8:15 pm CDT
Extended Forecast for

Boonville MO

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after 1am.  Increasing clouds, with a low around 71. East southeast wind around 6 mph.  Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Friday

    Friday: Showers and thunderstorms likely, mainly before 1pm.  Cloudy through mid morning, then gradual clearing, with a high near 90. Heat index values as high as 102. South southeast wind 7 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 90 °F

    Showers
    Likely then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms.  Increasing clouds, with a low around 66. West northwest wind 7 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, mainly before 1pm.  Mostly cloudy, with a high near 79. Northwest wind 13 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 79 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 64. North wind 5 to 13 mph, with gusts as high as 22 mph.

    Low: 64 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 71. East southeast wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and thunderstorms likely, mainly before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 90. Heat index values as high as 102. South southeast wind 7 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A chance of showers and thunderstorms. Increasing clouds, with a low around 66. West northwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers, mainly before 1pm. Mostly cloudy, with a high near 79. Northwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Partly cloudy, with a low around 64. North wind 5 to 13 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 84.
Sunday Night
Clear, with a low around 63.
Monday
Sunny, with a high near 86.
Monday Night
Clear, with a low around 65.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 70.
Thursday
Sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
Boonville MO
 38.96°N 92.72°W (Elev. 699 ft)
5:52 pm CDT Jul 30, 2026
8pm CDT Jul 30, 2026-6pm CDT Aug 6, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database