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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Carbondale IL

  • Tonight

    Tonight: A chance of sprinkles after 2am. Mostly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Chance
    Sprinkles

  • Sunday

    Sunday: Partly sunny, with a high near 75. Light northeast wind.

    High: 75 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 77. Calm wind.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 66. Calm wind becoming south around 5 mph after midnight.

    Low: 66 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. South wind 6 to 9 mph.

    High: 83 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers, mainly after 1am. Mostly cloudy, with a low around 69. South southeast wind 3 to 7 mph.

    Low: 69 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of sprinkles after 2am. Mostly cloudy, with a low around 59. Calm wind.
Sunday
Partly sunny, with a high near 75. Light northeast wind.
Sunday Night
Partly cloudy, with a low around 54. Calm wind.
Monday
Sunny, with a high near 77. Calm wind.
Monday Night
Mostly clear, with a low around 56. Calm wind.
Tuesday
Sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 66. Calm wind becoming south around 5 mph after midnight.
Wednesday
A slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. South wind 6 to 9 mph.
Wednesday Night
A chance of showers, mainly after 1am. Mostly cloudy, with a low around 69. South southeast wind 3 to 7 mph.
Thursday
A chance of showers. Mostly cloudy, with a high near 79. South southwest wind 9 to 11 mph, with gusts as high as 20 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 66. South wind around 6 mph.
Friday
A chance of showers. Mostly cloudy, with a high near 75. South southwest wind around 8 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 63. Light and variable wind.
Saturday
A chance of showers. Partly sunny, with a high near 74. East northeast wind 3 to 8 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:
10:41 pm CDT Sep 26, 2026
Forecast Valid:
11pm CDT Sep 26, 2026-6pm CDT Oct 3, 2026
 
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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