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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

77°F

25°C

Humidity 90%
Wind Speed S 7 mph
Barometer 30.01 in (1015.7 mb)
Dewpoint 74°F (23°C)
Visibility 9.00 mi
Heat Index78°F (26°C)
Last update 21 Jun 5:52 am CDT
Extended Forecast for

2 Miles SW Coello IL

Heat Advisory June 21, 12:00pm until June 24, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Sunny, with a high near 95. Heat index values as high as 106. South southwest wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 95 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 75. South wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 75 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 96. South southwest wind 6 to 10 mph.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 76. South wind 5 to 7 mph.

    Low: 76 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 94. South wind 5 to 7 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. South wind around 6 mph becoming calm in the evening.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before 1pm. Sunny, with a high near 93. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 93 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 75. South wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 94. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 94 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 95. Heat index values as high as 106. South southwest wind 7 to 14 mph, with gusts as high as 22 mph.
Tonight
Clear, with a low around 75. South wind 6 to 10 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 96. South southwest wind 6 to 10 mph.
Sunday Night
Clear, with a low around 76. South wind 5 to 7 mph.
Monday
Sunny, with a high near 94. South wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 75. South wind around 6 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Sunny, with a high near 93. Calm wind becoming south southwest around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 75. South wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 94. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 75. South wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 94. Light south southwest wind becoming southwest 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 75. South southwest wind 3 to 7 mph.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Southwest wind 5 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Coello IL
 38.03°N 89.13°W
Last Update:
5:16 am CDT Jun 21, 2025
Forecast Valid:
6am CDT Jun 21, 2025-6pm CDT Jun 27, 2025
 
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