Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

90°F

32°C

Humidity 55%
Wind Speed NA
Barometer 30.09 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 1 Sep 9:52 am CDT
Extended Forecast for

2 Miles SE Wolf Lake IL

Heat Advisory September 1, 10:40am until September 4, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 1, 10:40am until September 4, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 98 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 75. Light south southeast wind.

    Low: 75 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 75. Light south wind.

    Low: 75 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 98. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 98 °F

    Hot

  • Thursday Night

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

    Low: 76 °F

    Mostly Clear

  • Friday

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

    High: 98 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

Today
Sunny and hot, with a high near 98. South southwest wind 3 to 5 mph.
Tonight
Clear, with a low around 75. Light south southeast wind.
Wednesday
Sunny and hot, with a high near 98. Calm wind becoming south southwest around 6 mph in the afternoon.
Wednesday Night
Clear, with a low around 75. Light south wind.
Thursday
Sunny and hot, with a high near 98. Calm wind becoming south southwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 76. Calm wind.
Friday
Sunny and hot, with a high near 98. Light and variable wind.
Friday Night
Mostly clear, with a low around 75. Calm wind.
Saturday
Sunny and hot, with a high near 97. Calm wind.
Saturday Night
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 74. Calm wind.
Sunday
Sunny, with a high near 96. Light north northeast wind.
Sunday Night
Partly cloudy, with a low around 72. Calm wind.
Labor Day
Sunny, with a high near 93. Calm wind becoming east northeast around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Wolf Lake IL
 37.51°N 89.41°W
9:31 am CDT Sep 1, 2026
10am CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
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Additional Resources

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