Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

SULLIVAN (KUUV)

Lat: 38.23°NLon: 91.16°WElev: 933ft.

Fair

N/A

Humidity NA
Wind Speed Calm
Barometer 30.09 in
Dewpoint N/A
Visibility 10.00 mi
Last update 17 Aug 8:55 pm CDT
Extended Forecast for

4 Miles ESE Leasburg MO

  • Tonight

    Tonight: Partly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 91. Calm wind becoming south around 6 mph.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, mainly after 4am.  Increasing clouds, with a low around 69. Light and variable wind becoming southeast around 6 mph in the evening.  Chance of precipitation is 60%.

    Low: 69 °F

    Mostly Clear
    then T-storms
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 7am.  Partly sunny, with a high near 87. East wind around 6 mph becoming light and variable.  Chance of precipitation is 60%.

    High: 87 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly after 1am.  Mostly cloudy, with a low around 67. Light northeast wind.  Chance of precipitation is 60%.

    Low: 67 °F

    T-storms
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms before 1pm.  Partly sunny, with a high near 83.

    High: 83 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Friday Night

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

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 63. Calm wind.
Tuesday
Sunny, with a high near 91. Calm wind becoming south around 6 mph.
Tuesday Night
Showers and thunderstorms likely, mainly after 4am. Increasing clouds, with a low around 69. Light and variable wind becoming southeast around 6 mph in the evening. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms likely, mainly before 7am. Partly sunny, with a high near 87. East wind around 6 mph becoming light and variable. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 67. Light northeast wind. Chance of precipitation is 60%.
Thursday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 65.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 63.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 85.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 62.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Leasburg MO
 38.07°N 91.22°W (Elev. 738 ft)
6:11 pm CDT Aug 17, 2026
9pm CDT Aug 17, 2026-6pm CDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database