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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

79°F

26°C

Humidity 88%
Wind Speed Calm
Barometer 30.05 in (1017.0 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 16 Aug 8:52 pm CDT
Extended Forecast for

2 Miles ESE Cobden IL

Heat Advisory August 16, 09:15pm until August 19, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 16, 09:15pm until August 19, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • Tonight

    Low: 74 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 107. Light and variable wind.

    High: 98 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 98. Heat index values as high as 107. Calm wind.

    High: 98 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 76. Calm wind.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98. Light and variable wind.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. North wind 3 to 7 mph.

    High: 90 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 74. Calm wind.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 107. Light and variable wind.
Sunday Night
A 20 percent chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 74. Calm wind.
Monday
Sunny and hot, with a high near 98. Heat index values as high as 107. Calm wind.
Monday Night
Mostly clear, with a low around 76. Calm wind.
Tuesday
Sunny and hot, with a high near 98. Light and variable wind.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Calm wind.
Wednesday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. North wind 3 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 68. North northeast wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 85. North northeast wind 5 to 7 mph.
Thursday Night
Partly cloudy, with a low around 67. Northeast wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 88. Calm wind becoming northeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 67. Light north northeast wind.
Saturday
Sunny, with a high near 91. Calm wind becoming north northwest around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Cobden IL
 37.52°N 89.21°W
Last Update:
8:15 pm CDT Aug 16, 2025
Forecast Valid:
9pm CDT Aug 16, 2025-6pm CDT Aug 23, 2025
 
Forecast Discussion
 
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Additional Resources

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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