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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

88°F

31°C

Humidity 84%
Wind Speed SW 5 mph
Barometer 29.87 in
Dewpoint 82°F (28°C)
Visibility 10.00 mi
Heat Index109°F (43°C)
Last update 26 Jul 8:52 pm CDT
Extended Forecast for

Pomona IL

Extreme Heat Warning until July 28, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning until July 28, 07:00pm

    NOW until 7:00pm Tue

    Extreme Heat Warning

  • Tonight

    Low: 78 °F

    Slight Chance
    T-storms

  • Monday

    Monday: Sunny and hot, with a high near 99. Heat index values as high as 112. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 99 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 80. South southwest wind 5 to 7 mph.

    Low: 80 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95. Heat index values as high as 109. West wind 5 to 8 mph becoming north in the afternoon.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 1am. Mostly clear, with a low around 72. North northeast wind 3 to 8 mph.

    Low: 72 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 89. North wind 3 to 7 mph.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68. North northeast wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90. Light east northeast wind.

    High: 90 °F

    Sunny

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 78. Calm wind.
Monday
Sunny and hot, with a high near 99. Heat index values as high as 112. Calm wind becoming south 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 80. South southwest wind 5 to 7 mph.
Tuesday
Sunny, with a high near 95. Heat index values as high as 109. West wind 5 to 8 mph becoming north in the afternoon.
Tuesday Night
A 20 percent chance of showers before 1am. Mostly clear, with a low around 72. North northeast wind 3 to 8 mph.
Wednesday
Sunny, with a high near 89. North wind 3 to 7 mph.
Wednesday Night
Mostly clear, with a low around 68. North northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 90. Light east northeast wind.
Thursday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 70. Calm wind.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 87. Calm wind becoming south around 5 mph in the morning.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South southeast wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. North northeast wind 3 to 8 mph.
Saturday Night
Partly cloudy, with a low around 69. North northeast wind 5 to 8 mph becoming calm in the evening.
Sunday
A slight chance of showers and thunderstorms. Sunny, with a high near 87. North wind 3 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Pomona IL
 37.64°N 89.35°W
Last Update:
9:11 pm CDT Jul 26, 2026
Forecast Valid:
10pm CDT Jul 26, 2026-6pm CDT Aug 2, 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