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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

84°F

29°C

Humidity 84%
Wind Speed E 3 mph
Barometer 30.02 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 14 Aug 7:52 pm CDT
Extended Forecast for

Bush ILSimilar City Names

Extreme Heat Warning August 14, 08:37pm until August 16, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 14, 08:37pm until August 16, 08:00pm

    NOW until 8:00pm Sun

    Extreme Heat Warning

  • Tonight

    Low: 75 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 99. Heat index values as high as 109. Southwest wind 3 to 6 mph.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 75. South southwest wind 3 to 6 mph.

    Low: 75 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 99. Heat index values as high as 109. West wind 5 to 7 mph.

    High: 99 °F

    Hot

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 73. Light north northwest wind.

    Low: 73 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. North northwest wind 3 to 8 mph.

    High: 90 °F

    Partly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68. North wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 91. Light and variable wind.

    High: 91 °F

    Mostly Sunny

Detailed Forecast

Tonight
Clear, with a low around 75. Light south wind.
Saturday
Sunny and hot, with a high near 99. Heat index values as high as 109. Southwest wind 3 to 6 mph.
Saturday Night
Clear, with a low around 75. South southwest wind 3 to 6 mph.
Sunday
Sunny and hot, with a high near 99. Heat index values as high as 109. West wind 5 to 7 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 73. Light north northwest wind.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. North northwest wind 3 to 8 mph.
Monday Night
Partly cloudy, with a low around 68. North wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 91. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 72. Calm wind becoming south around 5 mph after midnight.
Wednesday
Mostly sunny, with a high near 96. South southwest wind 5 to 10 mph.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 71. West northwest wind 5 to 7 mph becoming north after midnight.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. North wind 5 to 8 mph.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 67. North northeast wind 3 to 7 mph.
Friday
Mostly sunny, with a high near 85. North wind 3 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bush ILSimilar City Names
 37.85°N 89.14°W
Last Update:
6:05 pm CDT Aug 14, 2026
Forecast Valid:
8pm CDT Aug 14, 2026-6pm CDT Aug 21, 2026
 
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Additional Resources

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Chance of Precipitation