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

35°F

2°C

Humidity 93%
Wind Speed Calm
Barometer 30.21 in (1022.9 mb)
Dewpoint 33°F (1°C)
Visibility 7.00 mi
Last update 13 Nov 2:52 am CST
Extended Forecast for

Du Quoin IL

  • Overnight

    Overnight: Partly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66. Calm wind becoming south southeast 5 to 7 mph in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 47. South southeast wind around 6 mph.

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 74. South southwest wind 6 to 11 mph.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. South southwest wind 7 to 11 mph.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 76. Southwest wind 11 to 16 mph, with gusts as high as 23 mph.

    High: 76 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46. Southwest wind 7 to 11 mph becoming north northwest after midnight.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 61. North northwest wind 5 to 8 mph.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. Calm wind becoming east around 5 mph after midnight.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 37. Calm wind.
Thursday
Mostly sunny, with a high near 66. Calm wind becoming south southeast 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 47. South southeast wind around 6 mph.
Friday
Mostly sunny, with a high near 74. South southwest wind 6 to 11 mph.
Friday Night
Mostly clear, with a low around 58. South southwest wind 7 to 11 mph.
Saturday
Mostly sunny, with a high near 76. Southwest wind 11 to 16 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 46. Southwest wind 7 to 11 mph becoming north northwest after midnight.
Sunday
Sunny, with a high near 61. North northwest wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 39. Calm wind becoming east around 5 mph after midnight.
Monday
A slight chance of showers after noon. Mostly sunny, with a high near 60. Southeast wind 5 to 10 mph.
Monday Night
Showers likely. Mostly cloudy, with a low around 47. Southeast wind 8 to 10 mph.
Tuesday
A chance of showers. Mostly sunny, with a high near 61. South wind 9 to 11 mph becoming west in the afternoon.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 44. West wind 6 to 8 mph becoming north after midnight.
Wednesday
A chance of showers. Mostly cloudy, with a high near 58. North northeast wind 6 to 8 mph becoming southwest in the afternoon.
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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:
2:51 am CST Nov 13, 2025
Forecast Valid:
3am CST Nov 13, 2025-6pm CST Nov 19, 2025
 
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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