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.

Partly Cloudy

80°F

27°C

Humidity 82%
Wind Speed W 5 mph
Barometer 29.99 in (1015.2 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 12 Jul 8:52 pm CDT
Extended Forecast for

Carbondale IL

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 4pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 90. Light and variable wind. Chance of precipitation is 70%.

    High: 90 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 71. Light south southwest wind. Chance of precipitation is 60%.

    Low: 71 °F

    T-storms
    Likely then
    Chance
    Showers and
    Patchy Fog

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Areas of fog before 8am. Otherwise, partly sunny, with a high near 89. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 89 °F

    Areas Fog
    then Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Light south wind. Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 90. Calm wind becoming south southwest around 6 mph in the morning. Chance of precipitation is 50%.

    High: 90 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. South southwest wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92. Southwest wind 3 to 7 mph.

    High: 92 °F

    Chance
    T-storms

  • Wednesday Night

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

    Low: 75 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Showers and thunderstorms likely, mainly after 4pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 90. Light and variable wind. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 71. Light south southwest wind. Chance of precipitation is 60%.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Areas of fog before 8am. Otherwise, partly sunny, with a high near 89. Calm wind becoming south southwest around 5 mph in the afternoon.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Light south wind. Chance of precipitation is 20%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 90. Calm wind becoming south southwest around 6 mph in the morning. Chance of precipitation is 50%.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. South southwest wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92. Southwest wind 3 to 7 mph.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 75. South southwest wind 3 to 6 mph.
Thursday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92. Southwest wind 5 to 7 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South southwest wind 3 to 6 mph.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. West southwest wind 3 to 6 mph.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 72. West wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Calm wind becoming west southwest around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
Last Update:
9:48 pm CDT Jul 12, 2025
Forecast Valid:
9pm CDT Jul 12, 2025-6pm CDT Jul 19, 2025
 
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