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.

Mostly Cloudy

75°F

24°C

Humidity 96%
Wind Speed SE 3 mph
Barometer 29.93 in (1013.2 mb)
Dewpoint 74°F (23°C)
Visibility 8.00 mi
Last update 15 Jul 9:52 pm CDT
Extended Forecast for

Carbondale IL

  • Tonight

    Tonight: A slight chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 74. Light south southwest wind. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Southwest wind 3 to 8 mph.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. South southwest wind 3 to 6 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. West southwest wind 5 to 7 mph.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Northwest wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88. Calm wind becoming south southeast around 5 mph.

    High: 88 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Light south southeast wind.

    Low: 74 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 89. Southwest wind 5 to 7 mph.

    High: 89 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. South wind 3 to 6 mph.

    Low: 75 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
A slight chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 74. Light south southwest wind. Chance of precipitation is 20%.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Southwest wind 3 to 8 mph.
Wednesday Night
Mostly clear, with a low around 75. South southwest wind 3 to 6 mph.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. West southwest wind 5 to 7 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Northwest wind around 5 mph becoming calm in the evening.
Friday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88. Calm wind becoming south southeast around 5 mph.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Light south southeast wind.
Saturday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 89. Southwest wind 5 to 7 mph.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. South wind 3 to 6 mph.
Sunday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Southwest wind 3 to 6 mph.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. South wind around 6 mph becoming light and variable in the evening.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. South wind 3 to 6 mph.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 76. South wind around 6 mph.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 94. South southwest wind 5 to 8 mph.
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 89.23°W
Last Update:
9:32 pm CDT Jul 15, 2025
Forecast Valid:
10pm CDT Jul 15, 2025-6pm CDT Jul 22, 2025
 
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