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

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Mostly Cloudy

73°F

23°C

Humidity 87%
Wind Speed S 3 mph
Barometer 29.98 in (1014.6 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 14 Oct 2:52 am CDT
Extended Forecast for

Du Quoin IL

  • Overnight

    Overnight: A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 72. Southwest wind around 6 mph.

    Low: 72 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. High near 81. Light and variable wind becoming west northwest around 6 mph. Chance of precipitation is 100%.

    High: 81 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, then gradually becoming sunny, with a high near 87. Light and variable wind becoming south southwest 6 to 11 mph in the morning.

    High: 87 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 51. Southwest wind 7 to 17 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 60%.

    Low: 51 °F

    Showers
    Likely

  • Friday

    Friday: Partly sunny, with a high near 62. Breezy, with a north northwest wind 20 to 22 mph, with gusts as high as 31 mph.

    High: 62 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 40. North wind 7 to 16 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 62. Northeast wind 5 to 7 mph.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37. Calm wind.

    Low: 37 °F

    Clear

Detailed Forecast

Overnight
A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 72. Southwest wind around 6 mph.
Wednesday
Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. High near 81. Light and variable wind becoming west northwest around 6 mph. Chance of precipitation is 100%.
Wednesday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 40%.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, then gradually becoming sunny, with a high near 87. Light and variable wind becoming south southwest 6 to 11 mph in the morning.
Thursday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 51. Southwest wind 7 to 17 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 62. Breezy, with a north northwest wind 20 to 22 mph, with gusts as high as 31 mph.
Friday Night
Mostly clear, with a low around 40. North wind 7 to 16 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 62. Northeast wind 5 to 7 mph.
Saturday Night
Clear, with a low around 37. Calm wind.
Sunday
Sunny, with a high near 69. Calm wind becoming south 5 to 8 mph in the morning.
Sunday Night
Partly cloudy, with a low around 44. Light south southeast wind.
Monday
Mostly sunny, with a high near 72. Calm wind becoming south 5 to 7 mph in the morning.
Monday Night
Partly cloudy, with a low around 48. Calm wind.
Tuesday
Mostly sunny, with a high near 77. Calm wind becoming south southeast around 6 mph 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:
1:26 am CDT Oct 14, 2026
Forecast Valid:
3am CDT Oct 14, 2026-6pm CDT Oct 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation