Severe Thunderstorms and Heavy Rain Across the Ohio Valley;

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Current conditions at

Marshall Memorial Municipal Airport (KMHL)

Lat: 39.1°NLon: 93.2°WElev: 779ft.

Fair

88°F

31°C

Humidity 75%
Wind Speed S 5 mph
Barometer 29.91 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 11 Aug 2:55 pm CDT
Extended Forecast for

De Witt MO

Extreme Heat Warning until August 14, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning until August 14, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • This Afternoon

    High: 94 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 77. South southwest wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 77 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 95. Heat index values as high as 107. South southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 95 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 75. South wind 5 to 8 mph.  Chance of precipitation is 20%.

    Low: 75 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 95. South southwest wind 5 to 9 mph.

    High: 95 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, mainly before 1am.  Partly cloudy, with a low around 73. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Friday Night

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

    Low: 74 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 94. Heat index values as high as 106. Southwest wind around 11 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 77. South southwest wind 6 to 9 mph, with gusts as high as 18 mph.
Wednesday
Mostly sunny, with a high near 95. Heat index values as high as 107. South southwest wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. South wind 5 to 8 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 95. South southwest wind 5 to 9 mph.
Thursday Night
A chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 93.
Friday Night
Partly cloudy, with a low around 74.
Saturday
Mostly sunny, with a high near 96.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
Mostly cloudy, with a low around 70.
Monday
Partly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
Mostly sunny, with a high near 89.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
De Witt MO
 39.38°N 93.23°W (Elev. 699 ft)
1:26 pm CDT Aug 11, 2026
3pm CDT Aug 11, 2026-6pm CDT Aug 18, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database