National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Cobden IL

  • Overnight

    Overnight: A 10 percent chance of showers after 5am. Mostly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 89. Light and variable wind. Chance of precipitation is 30%.

    High: 89 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 86. Calm wind becoming north 5 to 8 mph in the morning.

    High: 86 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. Light north wind.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87. North northeast wind 3 to 7 mph.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 62. Light northeast wind.

    Low: 62 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 87. Calm wind.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Overnight
A 10 percent chance of showers after 5am. Mostly cloudy, with a low around 68. Calm wind.
Wednesday
A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 89. Light and variable wind. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 86. Calm wind becoming north 5 to 8 mph in the morning.
Thursday Night
Mostly clear, with a low around 66. Light north wind.
Friday
Sunny, with a high near 87. North northeast wind 3 to 7 mph.
Friday Night
Clear, with a low around 62. Light northeast wind.
Saturday
Sunny, with a high near 87. Calm wind.
Saturday Night
Mostly clear, with a low around 65. Calm wind.
Sunday
Sunny, with a high near 91. Calm wind becoming south southwest 5 to 7 mph in the morning.
Sunday Night
Mostly clear, with a low around 70. Calm wind becoming south around 5 mph after midnight.
Monday
Sunny, with a high near 93. South southwest wind 5 to 8 mph.
Monday Night
Mostly clear, with a low around 72. Light south wind.
Tuesday
Mostly sunny, with a high near 93. South southwest wind 3 to 6 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cobden IL
 37.54°N 89.27°W
Last Update:
8:36 pm CDT Aug 25, 2026
Forecast Valid:
12am CDT Aug 26, 2026-6pm CDT Sep 1, 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