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.

Fair

80°F

27°C

Humidity 35%
Wind Speed E 10 mph
Barometer 29.89 in (1011.8 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 26 Apr 2:52 pm CDT
Extended Forecast for

Du Quoin IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 80. East southeast wind around 7 mph.

    High: 80 °F

    Partly Sunny

  • Tonight

    Tonight: A slight chance of showers between 3am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 61. East southeast wind 6 to 10 mph. Chance of precipitation is 20%.

    Low: 61 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 82. Breezy, with a south wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 60%.

    High: 82 °F

    Heavy Rain
    and Breezy

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 58. Breezy, with a south southwest wind 17 to 22 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 80%.

    Low: 58 °F

    Showers and
    Breezy

  • Tuesday

    Tuesday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Sunny, with a high near 76. West northwest wind around 6 mph becoming south southwest in the afternoon. Chance of precipitation is 40%.

    High: 76 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 54. East southeast wind 5 to 8 mph becoming north after midnight. Chance of precipitation is 80%.

    Low: 54 °F

    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 68. North northwest wind 9 to 13 mph, with gusts as high as 18 mph.

    High: 68 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44. North northwest wind 5 to 9 mph becoming calm after midnight.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 68. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 80. East southeast wind around 7 mph.
Tonight
A slight chance of showers between 3am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 61. East southeast wind 6 to 10 mph. Chance of precipitation is 20%.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 82. Breezy, with a south wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 60%.
Monday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 58. Breezy, with a south southwest wind 17 to 22 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 80%.
Tuesday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Sunny, with a high near 76. West northwest wind around 6 mph becoming south southwest in the afternoon. Chance of precipitation is 40%.
Tuesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 54. East southeast wind 5 to 8 mph becoming north after midnight. Chance of precipitation is 80%.
Wednesday
Mostly sunny, with a high near 68. North northwest wind 9 to 13 mph, with gusts as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 44. North northwest wind 5 to 9 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 68. Calm wind becoming north 5 to 7 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 46. Light north northwest wind.
Friday
A slight chance of showers. Mostly sunny, with a high near 67. North wind 3 to 8 mph.
Friday Night
Partly cloudy, with a low around 44. North northeast wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 66. North northeast wind 3 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Du Quoin IL
 38.01°N 89.24°W
Last Update:
1:56 pm CDT Apr 26, 2026
Forecast Valid:
3pm CDT Apr 26, 2026-6pm CDT May 2, 2026
 
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