National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fog/Mist

72°F

22°C

Humidity 94%
Wind Speed NE 5 mph
Barometer 29.95 in
Dewpoint 70°F (21°C)
Visibility 4.00 mi
Last update 11 Sep 6:07 am CDT
Extended Forecast for

Carbondale IL

  • Today

    Today: A slight chance of showers and thunderstorms between 11am and 1pm. Mostly cloudy, with a high near 84. Calm wind. Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers, mainly after 9pm. Mostly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 89. Calm wind becoming west around 5 mph.

    High: 89 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 91. Light and variable wind.

    High: 91 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 68. Light southeast wind.

    Low: 68 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 90. South wind 3 to 8 mph.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 70. South southeast wind around 6 mph.

    Low: 70 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92. South southwest wind 5 to 8 mph.

    High: 92 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers and thunderstorms between 11am and 1pm. Mostly cloudy, with a high near 84. Calm wind. Chance of precipitation is 20%.
Tonight
A 40 percent chance of showers, mainly after 9pm. Mostly cloudy, with a low around 67. Calm wind.
Saturday
Mostly sunny, with a high near 89. Calm wind becoming west around 5 mph.
Saturday Night
Mostly clear, with a low around 67. Calm wind.
Sunday
Mostly sunny, with a high near 91. Light and variable wind.
Sunday Night
Mostly clear, with a low around 68. Light southeast wind.
Monday
Sunny, with a high near 90. South wind 3 to 8 mph.
Monday Night
Clear, with a low around 70. South southeast wind around 6 mph.
Tuesday
Sunny, with a high near 92. South southwest wind 5 to 8 mph.
Tuesday Night
A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 70. Light south southeast wind.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Light and variable wind becoming southwest around 6 mph in the morning.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Calm wind.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Light and variable wind becoming west 5 to 7 mph in the morning.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.2°W
Last Update:
5:21 am CDT Sep 11, 2026
Forecast Valid:
8am CDT Sep 11, 2026-6pm CDT Sep 17, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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