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

30°F

-1°C

Humidity 79%
Wind Speed S 12 mph
Barometer 29.97 in (1015.3 mb)
Dewpoint 24°F (-4°C)
Visibility 8.00 mi
Wind Chill20°F (-7°C)
Last update 5 Feb 8:52 pm CST
Extended Forecast for

Du Quoin IL

  • Tonight

    Tonight: Partly cloudy, with a steady temperature around 31. West southwest wind around 6 mph.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 47. West southwest wind 7 to 12 mph becoming north northwest 13 to 18 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 47 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 23. North northwest wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 23 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 34. Northeast wind 5 to 7 mph becoming light and variable in the afternoon.

    High: 34 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 23. Southeast wind 3 to 6 mph.

    Low: 23 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 48. South wind 6 to 9 mph.

    High: 48 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29. Southeast wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 55. Calm wind becoming south around 5 mph in the afternoon.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. South wind around 6 mph.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a steady temperature around 31. West southwest wind around 6 mph.
Friday
Increasing clouds, with a high near 47. West southwest wind 7 to 12 mph becoming north northwest 13 to 18 mph in the afternoon. Winds could gust as high as 33 mph.
Friday Night
Mostly cloudy, with a low around 23. North northwest wind 6 to 10 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 34. Northeast wind 5 to 7 mph becoming light and variable in the afternoon.
Saturday Night
Partly cloudy, with a low around 23. Southeast wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 48. South wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 29. Southeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 55. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 39. South wind around 6 mph.
Tuesday
A slight chance of showers after noon. Partly sunny, with a high near 61. South southwest wind 6 to 9 mph.
Tuesday Night
A chance of showers. Cloudy, with a low around 45. Southwest wind around 8 mph.
Wednesday
A chance of showers. Mostly cloudy, with a high near 56. West southwest wind 7 to 9 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 37. West southwest wind around 7 mph becoming northwest after midnight.
Thursday
A chance of showers. Mostly cloudy, with a high near 50. Northwest wind 7 to 9 mph becoming south southwest in the morning.
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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:
8:17 pm CST Feb 5, 2026
Forecast Valid:
9pm CST Feb 5, 2026-6pm CST Feb 12, 2026
 
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Additional Resources

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Chance of Precipitation