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

74°F

23°C

Humidity 64%
Wind Speed SW 13 G 22 mph
Barometer 29.91 in (1012.4 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 15 Apr 12:52 am CDT
Extended Forecast for

Du Quoin IL

  • Overnight

    Overnight: Partly cloudy, with a low around 69. South southwest wind around 11 mph, with gusts as high as 23 mph.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Partly sunny, with a high near 83. South southwest wind 11 to 18 mph, with gusts as high as 30 mph.

    High: 83 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Low around 65. South southwest wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 65 °F

    Chance
    T-storms then
    Showers

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 10am. Mostly cloudy, then gradually becoming sunny, with a high near 82. Southwest wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 61. South southwest wind 3 to 7 mph. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. South wind 5 to 13 mph, with gusts as high as 21 mph.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. South wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    Low: 58 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 72. South southwest wind 13 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 72 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers, mainly before 1am. Partly cloudy, with a low around 40. West northwest wind 9 to 13 mph, with gusts as high as 21 mph.

    Low: 40 °F

    Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 69. South southwest wind around 11 mph, with gusts as high as 23 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Partly sunny, with a high near 83. South southwest wind 11 to 18 mph, with gusts as high as 30 mph.
Wednesday Night
Showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Low around 65. South southwest wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Thursday
Showers likely, with thunderstorms also possible after 10am. Mostly cloudy, then gradually becoming sunny, with a high near 82. Southwest wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Thursday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 61. South southwest wind 3 to 7 mph. Chance of precipitation is 20%.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. South wind 5 to 13 mph, with gusts as high as 21 mph.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. South wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 72. South southwest wind 13 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.
Saturday Night
A chance of showers, mainly before 1am. Partly cloudy, with a low around 40. West northwest wind 9 to 13 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 63. West northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Sunday Night
Clear, with a low around 40. Northwest wind 5 to 7 mph becoming east southeast after midnight.
Monday
Sunny, with a high near 69. South wind 5 to 9 mph.
Monday Night
Partly cloudy, with a low around 48. South wind around 7 mph.
Tuesday
Sunny, with a high near 76. South southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Du Quoin IL
 38.01°N 89.24°W
Last Update:
12:22 am CDT Apr 15, 2026
Forecast Valid:
1am CDT Apr 15, 2026-6pm CDT Apr 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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