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.

Fog/Mist

43°F

6°C

Humidity 100%
Wind Speed S 5 mph
Barometer 29.86 in (1011.3 mb)
Dewpoint 43°F (6°C)
Visibility 1.75 mi
Wind Chill40°F (4°C)
Last update 5 Nov 2:52 am CST
Extended Forecast for

Du Quoin IL

  • Overnight

    Overnight: Patchy fog. Otherwise, clear, with a steady temperature around 48. Southwest wind 3 to 5 mph.

    Low: 48 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, sunny, with a high near 66. West southwest wind 5 to 10 mph.

    High: 66 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43. West northwest wind 3 to 6 mph.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 57. North northwest wind 6 to 11 mph.

    High: 57 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 32. North wind 5 to 7 mph becoming calm in the evening.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 55. Calm wind becoming north around 5 mph.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 59. Calm wind becoming west around 5 mph.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 34. Calm wind.

    Low: 34 °F

    Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, clear, with a steady temperature around 48. Southwest wind 3 to 5 mph.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 66. West southwest wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 43. West northwest wind 3 to 6 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 57. North northwest wind 6 to 11 mph.
Friday Night
Mostly clear, with a low around 32. North wind 5 to 7 mph becoming calm in the evening.
Saturday
Sunny, with a high near 55. Calm wind becoming north around 5 mph.
Saturday Night
Mostly clear, with a low around 31. Calm wind.
Sunday
Sunny, with a high near 59. Calm wind becoming west around 5 mph.
Sunday Night
Clear, with a low around 34. Calm wind.
Monday
Sunny, with a high near 65. Calm wind becoming south southwest around 5 mph.
Monday Night
Clear, with a low around 39. Calm wind.
Tuesday
Sunny, with a high near 67. Calm wind becoming west around 5 mph.
Tuesday Night
Mostly clear, with a low around 40. Calm wind.
Veterans Day
Mostly sunny, with a high near 67. Calm wind becoming north northwest around 5 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:
1:41 am CST Nov 5, 2026
Forecast Valid:
3am CST Nov 5, 2026-6pm CST Nov 11, 2026
 
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Additional Resources

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Chance of Precipitation