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

27°F

-3°C

Humidity 69%
Wind Speed SW 7 mph
Barometer 30.17 in (1022.1 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 30 Dec 9:52 pm CST
Extended Forecast for

Du Quoin IL

  • Tonight

    Tonight: Mostly clear, with a low around 27. West southwest wind around 6 mph.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 42. West northwest wind 6 to 10 mph.

    High: 42 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27. Light and variable wind.

    Low: 27 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 39. Calm wind becoming east northeast around 5 mph.

    High: 39 °F

    Partly Sunny

  • Thursday Night

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

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 45. Calm wind becoming north northeast around 6 mph in the morning.

    High: 45 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 26. North northeast wind around 6 mph.

    Low: 26 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 41. North northeast wind 3 to 6 mph.

    High: 41 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 27. West southwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 42. West northwest wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 27. Light and variable wind.
New Year's Day
Partly sunny, with a high near 39. Calm wind becoming east northeast around 5 mph.
Thursday Night
Mostly cloudy, with a low around 31. Calm wind.
Friday
Mostly cloudy, with a high near 45. Calm wind becoming north northeast around 6 mph in the morning.
Friday Night
Mostly cloudy, with a low around 26. North northeast wind around 6 mph.
Saturday
Mostly sunny, with a high near 41. North northeast wind 3 to 6 mph.
Saturday Night
Mostly clear, with a low around 26. Calm wind.
Sunday
Partly sunny, with a high near 47. Calm wind becoming south 5 to 8 mph in the morning.
Sunday Night
Partly cloudy, with a low around 35. West southwest wind around 7 mph.
Monday
Mostly sunny, with a high near 52. West southwest wind 6 to 9 mph becoming northwest in the afternoon.
Monday Night
Partly cloudy, with a low around 31. Northwest wind around 6 mph.
Tuesday
Mostly sunny, with a high near 47. Northwest wind 5 to 7 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:
4:16 pm CST Dec 30, 2025
Forecast Valid:
10pm CST Dec 30, 2025-6pm CST Jan 6, 2026
 
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Additional Resources

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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