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.

Mostly Cloudy

30°F

-1°C

Humidity 79%
Wind Speed NE 3 mph
Barometer 30.07 in (1018.6 mb)
Dewpoint 24°F (-4°C)
Visibility 8.00 mi
Last update 3 Feb 7:52 am CST
Extended Forecast for

Coello IL

  • Today

    Today: A chance of drizzle, snow, and freezing rain before 1pm, then a slight chance of drizzle between 1pm and 2pm. Mostly cloudy, with a high near 35. Light and variable wind becoming north 5 to 10 mph in the morning. Chance of precipitation is 30%.

    High: 35 °F

    Chance Wintry
    Mix

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. North wind around 7 mph.

    Low: 21 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 30. North wind 6 to 9 mph.

    High: 30 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 13. North wind around 5 mph becoming calm in the evening.

    Low: 13 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 36. Calm wind becoming south southwest 5 to 9 mph in the morning.

    High: 36 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28. South southwest wind around 9 mph.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 49. West southwest wind 7 to 10 mph becoming north northwest in the afternoon.

    High: 49 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 25. North northwest wind 3 to 6 mph.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 41. Light and variable wind becoming east around 6 mph in the morning.

    High: 41 °F

    Sunny

Detailed Forecast

Today
A chance of drizzle, snow, and freezing rain before 1pm, then a slight chance of drizzle between 1pm and 2pm. Mostly cloudy, with a high near 35. Light and variable wind becoming north 5 to 10 mph in the morning. Chance of precipitation is 30%.
Tonight
Mostly cloudy, with a low around 21. North wind around 7 mph.
Wednesday
Partly sunny, with a high near 30. North wind 6 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 13. North wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 36. Calm wind becoming south southwest 5 to 9 mph in the morning.
Thursday Night
Partly cloudy, with a low around 28. South southwest wind around 9 mph.
Friday
Mostly sunny, with a high near 49. West southwest wind 7 to 10 mph becoming north northwest in the afternoon.
Friday Night
Mostly clear, with a low around 25. North northwest wind 3 to 6 mph.
Saturday
Sunny, with a high near 41. Light and variable wind becoming east around 6 mph in the morning.
Saturday Night
Partly cloudy, with a low around 26. East southeast wind around 6 mph.
Sunday
Mostly sunny, with a high near 43. Northeast wind around 7 mph.
Sunday Night
Partly cloudy, with a low around 24. East northeast wind 3 to 5 mph.
Monday
Partly sunny, with a high near 41. East northeast wind 5 to 7 mph becoming southeast in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Coello IL
 38.03°N 89.1°W
Last Update:
6:46 am CST Feb 3, 2026
Forecast Valid:
7am CST Feb 3, 2026-6pm CST Feb 9, 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