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

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

33°F

1°C

Humidity 82%
Wind Speed N 7 mph
Barometer 30.31 in (1026.5 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 11 Feb 7:52 am CST
Extended Forecast for

Du Quoin IL

  • Today

    Today: Sunny, with a high near 49. North wind 3 to 7 mph.

    High: 49 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 29. North wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 50. Calm wind becoming southeast around 5 mph.

    High: 50 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 55. Calm wind becoming south southeast around 5 mph.

    High: 55 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36. Light southeast wind.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 52. East southeast wind 3 to 7 mph.

    High: 52 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 42. East wind around 7 mph.

    Low: 42 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before noon. Mostly sunny, with a high near 54. North wind 6 to 9 mph.

    High: 54 °F

    Chance
    Showers then
    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 49. North wind 3 to 7 mph.
Tonight
Increasing clouds, with a low around 29. North wind around 5 mph becoming calm in the evening.
Thursday
Mostly cloudy, with a high near 50. Calm wind becoming southeast around 5 mph.
Thursday Night
Mostly cloudy, with a low around 31. Calm wind.
Friday
Mostly sunny, with a high near 55. Calm wind becoming south southeast around 5 mph.
Friday Night
Mostly cloudy, with a low around 36. Light southeast wind.
Saturday
A 40 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 52. East southeast wind 3 to 7 mph.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 42. East wind around 7 mph.
Sunday
A chance of showers before noon. Mostly sunny, with a high near 54. North wind 6 to 9 mph.
Sunday Night
Partly cloudy, with a low around 38. North wind around 5 mph becoming calm in the evening.
Washington's Birthday
Mostly sunny, with a high near 59. South southeast wind 3 to 8 mph.
Monday Night
Mostly cloudy, with a low around 44. South wind 6 to 9 mph.
Tuesday
Mostly cloudy, with a high near 63. South wind 9 to 15 mph, with gusts as high as 24 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Du Quoin IL
 38.01°N 89.24°W
Last Update:
7:16 am CST Feb 11, 2026
Forecast Valid:
7am CST Feb 11, 2026-6pm CST Feb 17, 2026
 
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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