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

58°F

14°C

Humidity 58%
Wind Speed SE 6 mph
Barometer 30.16 in (1021.1 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 8 Apr 9:52 pm CDT
Extended Forecast for

Carbondale IL

  • Tonight

    Tonight: Clear, with a low around 54. South wind around 7 mph.

    Low: 54 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 77. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. South wind around 7 mph.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 79. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 79 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. North wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 30%.

    Low: 56 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Light and variable wind becoming south southeast around 6 mph in the morning.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 61. Southeast wind around 6 mph.

    Low: 61 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 82. South wind 7 to 16 mph, with gusts as high as 26 mph.

    High: 82 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. South wind 13 to 15 mph, with gusts as high as 26 mph.

    Low: 66 °F

    Mostly Cloudy
    then Chance
    T-storms

Detailed Forecast

Tonight
Clear, with a low around 54. South wind around 7 mph.
Thursday
Sunny, with a high near 77. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 56. South wind around 7 mph.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 79. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. North wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 30%.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Light and variable wind becoming south southeast around 6 mph in the morning.
Saturday Night
Partly cloudy, with a low around 61. Southeast wind around 6 mph.
Sunday
Mostly cloudy, with a high near 82. South wind 7 to 16 mph, with gusts as high as 26 mph.
Sunday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. South wind 13 to 15 mph, with gusts as high as 26 mph.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. South southwest wind 16 to 18 mph, with gusts as high as 30 mph.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. South southwest wind 13 to 15 mph, with gusts as high as 25 mph.
Tuesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 81. South southwest wind 15 to 18 mph, with gusts as high as 28 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. South southwest wind 11 to 13 mph, with gusts as high as 22 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 74. Southwest wind 11 to 13 mph, with gusts as high as 21 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 pm CDT Apr 8, 2026
Forecast Valid:
10pm CDT Apr 8, 2026-6pm CDT Apr 15, 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