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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

75°F

24°C

Humidity 82%
Wind Speed S 5 mph
Barometer 29.95 in (1013.8 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 13 Oct 10:52 pm CDT
Extended Forecast for

De Soto IL

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 72. South southwest wind around 5 mph.

    Low: 72 °F

    Clear then
    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. High near 83. Light and variable wind becoming northeast 5 to 7 mph in the morning. Chance of precipitation is 80%.

    High: 83 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 50%.

    Low: 67 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 86. Light and variable wind becoming southwest 6 to 11 mph in the morning. Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Southwest wind 6 to 16 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 40%.

    Low: 52 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 62. Breezy, with a north northwest wind 18 to 21 mph, with gusts as high as 30 mph.

    High: 62 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 38. North wind 5 to 13 mph, with gusts as high as 18 mph.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 61. Northeast wind 3 to 6 mph.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 38. Calm wind.

    Low: 38 °F

    Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 72. South southwest wind around 5 mph.
Wednesday
Showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. High near 83. Light and variable wind becoming northeast 5 to 7 mph in the morning. Chance of precipitation is 80%.
Wednesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 50%.
Thursday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 86. Light and variable wind becoming southwest 6 to 11 mph in the morning. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Southwest wind 6 to 16 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 62. Breezy, with a north northwest wind 18 to 21 mph, with gusts as high as 30 mph.
Friday Night
Mostly clear, with a low around 38. North wind 5 to 13 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 61. Northeast wind 3 to 6 mph.
Saturday Night
Clear, with a low around 38. Calm wind.
Sunday
Sunny, with a high near 70. Calm wind becoming south 5 to 7 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 45. Calm wind.
Monday
Mostly sunny, with a high near 73. Calm wind becoming south southwest 5 to 7 mph in the morning.
Monday Night
Partly cloudy, with a low around 50. Calm wind.
Tuesday
Mostly sunny, with a high near 78. Calm wind becoming south around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
De Soto IL
 37.81°N 89.23°W
Last Update:
6:01 pm CDT Oct 13, 2026
Forecast Valid:
10pm CDT Oct 13, 2026-6pm CDT Oct 20, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation