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 and Breezy

74°F

23°C

Humidity 69%
Wind Speed S 21 G 31 mph
Barometer 29.99 in (1015.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 13 Apr 10:52 pm CDT
Extended Forecast for

Carbondale/Murphysboro, Southern Illinois Airport IL

  • Tonight

    Tonight: Partly cloudy, with a low around 68. South southwest wind 14 to 16 mph, with gusts as high as 25 mph.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85. South southwest wind 14 to 18 mph, with gusts as high as 28 mph.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 2am, then a slight chance of showers after 3am. Increasing clouds, with a low around 67. South southwest wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 67 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. South southwest wind 11 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. South southwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

    Low: 64 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 79. South southwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.

    High: 79 °F

    Showers then
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 60. South southwest wind 5 to 9 mph. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. South southwest wind 5 to 13 mph, with gusts as high as 21 mph.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 65. South wind 11 to 13 mph, with gusts as high as 21 mph.

    Low: 65 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 68. South southwest wind 14 to 16 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 85. South southwest wind 14 to 18 mph, with gusts as high as 28 mph.
Tuesday Night
A slight chance of showers before 2am, then a slight chance of showers after 3am. Increasing clouds, with a low around 67. South southwest wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. South southwest wind 11 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. South southwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Thursday
Showers and possibly a thunderstorm. High near 79. South southwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Thursday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 60. South southwest wind 5 to 9 mph. Chance of precipitation is 30%.
Friday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. South southwest wind 5 to 13 mph, with gusts as high as 21 mph.
Friday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 65. South wind 11 to 13 mph, with gusts as high as 21 mph.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 78. South southwest wind 14 to 17 mph becoming west in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 44. West northwest wind 8 to 13 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 64. West northwest wind 7 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 40. North wind 3 to 8 mph.
Monday
Sunny, with a high near 69. East southeast wind 5 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Carbondale/Murphysboro, Southern Illinois Airport IL
 37.79°N 89.25°W
Last Update:
11:12 pm CDT Apr 13, 2026
Forecast Valid:
11pm CDT Apr 13, 2026-6pm CDT Apr 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation