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

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

74°F

23°C

Humidity 64%
Wind Speed S 8 mph
Barometer 29.90 in (1012.0 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 15 May 9:52 pm CDT
Extended Forecast for

Bush IL

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 68. South southwest wind 6 to 11 mph, with gusts as high as 21 mph.

    Low: 68 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. South southwest wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 86 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming clear, with a low around 66. South wind 7 to 9 mph.

    Low: 66 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 89. South wind 8 to 17 mph, with gusts as high as 25 mph.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 69. South wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 69 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Breezy, with a south wind 13 to 20 mph, with gusts as high as 28 mph.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71. South wind 14 to 16 mph, with gusts as high as 24 mph.

    Low: 71 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. Partly sunny, with a high near 83. South southwest wind 14 to 17 mph, with gusts as high as 25 mph.

    High: 83 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. South southwest wind 5 to 9 mph becoming north northwest after midnight.

    Low: 63 °F

    Showers
    Likely

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 68. South southwest wind 6 to 11 mph, with gusts as high as 21 mph.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. South southwest wind 10 to 13 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around 66. South wind 7 to 9 mph.
Sunday
Sunny, with a high near 89. South wind 8 to 17 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 69. South wind 11 to 14 mph, with gusts as high as 22 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Breezy, with a south wind 13 to 20 mph, with gusts as high as 28 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71. South wind 14 to 16 mph, with gusts as high as 24 mph.
Tuesday
Showers and possibly a thunderstorm. Partly sunny, with a high near 83. South southwest wind 14 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. South southwest wind 5 to 9 mph becoming north northwest after midnight.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 74. North wind 7 to 9 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 56. North wind 5 to 9 mph.
Thursday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 76. Northeast wind 7 to 9 mph.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 57. Northeast wind 3 to 7 mph.
Friday
A slight chance of showers. Mostly sunny, with a high near 81. East wind 3 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Bush IL
 37.85°N 89.14°W
Last Update:
9:16 pm CDT May 15, 2026
Forecast Valid:
10pm CDT May 15, 2026-6pm CDT May 22, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation