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.

Overcast

60°F

16°C

Humidity 93%
Wind Speed N 5 mph
Barometer 30.12 in (1019.7 mb)
Dewpoint 58°F (14°C)
Visibility 9.00 mi
Last update 3 Aug 6:52 am CDT
Extended Forecast for

Du Quoin IL

  • Today

    Today: Sunny, with a high near 83. Light north northeast wind becoming east northeast 5 to 9 mph in the morning.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 66. Northeast wind around 6 mph becoming calm in the evening.

    Low: 66 °F

    Increasing
    Clouds

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. Calm wind becoming east around 6 mph in the morning.

    High: 82 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. East wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 85. Calm wind becoming east southeast around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68. Light east wind.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88. Light east southeast wind.

    High: 88 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68. Light southeast wind.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 90 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 83. Light north northeast wind becoming east northeast 5 to 9 mph in the morning.
Tonight
Increasing clouds, with a low around 66. Northeast wind around 6 mph becoming calm in the evening.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. Calm wind becoming east around 6 mph in the morning.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. East wind around 5 mph becoming calm in the evening.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 85. Calm wind becoming east southeast around 6 mph in the afternoon. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 68. Light east wind.
Wednesday
Mostly sunny, with a high near 88. Light east southeast wind.
Wednesday Night
Mostly clear, with a low around 68. Light southeast wind.
Thursday
Sunny, with a high near 90. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 69. Southeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 92. Calm wind becoming south southeast 5 to 7 mph in the morning.
Friday Night
Mostly clear, with a low around 71. Southeast wind 3 to 6 mph.
Saturday
Sunny, with a high near 93. South wind 5 to 8 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:
5:31 am CDT Aug 3, 2025
Forecast Valid:
7am CDT Aug 3, 2025-6pm CDT Aug 9, 2025
 
Forecast Discussion
 
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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