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

74°F

23°C

Humidity 32%
Wind Speed S 16 mph
Barometer 30.14 in (1020.7 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 8 Apr 3:52 pm CDT
Extended Forecast for

Carbondale IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 74. South wind around 7 mph.

    High: 74 °F

    Mostly Sunny

  • Tonight

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

    Low: 54 °F

    Mostly 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

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 74. South wind around 7 mph.
Tonight
Mostly 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 and thunderstorms. 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.
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ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
Last Update:
3:52 pm CDT Apr 8, 2026
Forecast Valid:
4pm CDT Apr 8, 2026-6pm CDT Apr 14, 2026
 
Forecast Discussion
 
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Additional Resources

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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