Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Hazardous Weather Conditions

Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Thunderstorm in Vicinity

82°F

28°C

Humidity 64%
Wind Speed Calm
Barometer 29.89 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 19 Aug 4:35 pm CDT
Extended Forecast for

Seatonville IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms.  Partly sunny, with a steady temperature around 79. North wind around 5 mph.

    High: 79 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Patchy fog after 4am.  Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 61. Northeast wind around 5 mph.

    Low: 61 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, sunny, with a high near 79. Northeast wind around 5 mph becoming calm.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny, with a steady temperature around 79. North wind around 5 mph.
Tonight
Patchy fog after 4am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 61. Northeast wind around 5 mph.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 79. Northeast wind around 5 mph becoming calm.
Thursday Night
Mostly clear, with a low around 61. Calm wind.
Friday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 59.
Monday
Partly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Partly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Seatonville IL
 41.37°N 89.29°W (Elev. 656 ft)
4:01 pm CDT Aug 19, 2026
4pm CDT Aug 19, 2026-6pm CDT Aug 25, 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