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

48°F

9°C

Humidity 54%
Wind Speed NE 10 mph
Barometer 30.41 in (1029.6 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 7 Apr 8:52 am CDT
Extended Forecast for

Carbondale IL

  • Today

    Today: Partly sunny, with a high near 59. East northeast wind 8 to 10 mph.

    High: 59 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. East southeast wind 5 to 7 mph.

    Low: 40 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. South wind 6 to 10 mph.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. South wind around 8 mph.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76. South wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. South wind around 6 mph.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 78. South wind 6 to 9 mph.

    High: 78 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 58. West southwest wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 81. Light and variable wind becoming south around 6 mph in the morning.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 59. East northeast wind 8 to 10 mph.
Tonight
Mostly clear, with a low around 40. East southeast wind 5 to 7 mph.
Wednesday
Mostly sunny, with a high near 74. South wind 6 to 10 mph.
Wednesday Night
Mostly clear, with a low around 53. South wind around 8 mph.
Thursday
Sunny, with a high near 76. South wind 8 to 10 mph, with gusts as high as 18 mph.
Thursday Night
Mostly clear, with a low around 54. South wind around 6 mph.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 78. South wind 6 to 9 mph.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 58. West southwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 81. Light and variable wind becoming south around 6 mph in the morning.
Saturday Night
Partly cloudy, with a low around 60. Southeast wind around 6 mph.
Sunday
Mostly sunny, with a high near 83. South wind 6 to 15 mph, with gusts as high as 24 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind 11 to 14 mph, with gusts as high as 24 mph.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. South southwest wind 15 to 18 mph, with gusts as high as 28 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
Last Update:
7:52 am CDT Apr 7, 2026
Forecast Valid:
9am CDT Apr 7, 2026-6pm CDT Apr 13, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation