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

66°F

19°C

Humidity 78%
Wind Speed NE 6 mph
Barometer 30.25 in (1024.2 mb)
Dewpoint 59°F (15°C)
Visibility 7.00 mi
Last update 1 Aug 11:52 pm CDT
Extended Forecast for

Carbondale IL

  • Overnight

    Overnight: Partly cloudy, with a low around 60. North northeast wind around 6 mph.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 80. Northeast wind 6 to 10 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60. North northeast wind 3 to 6 mph.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. North northeast wind 3 to 7 mph.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 65. Northeast wind around 6 mph becoming calm in the evening.

    Low: 65 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Light northeast wind.

    High: 83 °F

    Partly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68. Light east southeast wind.

    Low: 68 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 84. Light east southeast wind.

    High: 84 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 68. Light east southeast wind.

    Low: 68 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 60. North northeast wind around 6 mph.
Saturday
Sunny, with a high near 80. Northeast wind 6 to 10 mph.
Saturday Night
Mostly clear, with a low around 60. North northeast wind 3 to 6 mph.
Sunday
Sunny, with a high near 83. North northeast wind 3 to 7 mph.
Sunday Night
Partly cloudy, with a low around 65. Northeast wind around 6 mph becoming calm in the evening.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Light northeast wind.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68. Light east southeast wind.
Tuesday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 84. Light east southeast wind.
Tuesday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 68. Light east southeast wind.
Wednesday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Calm wind becoming southeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 70. Light southeast wind.
Thursday
Sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 71. Light southeast wind.
Friday
Sunny, with a high near 91. Calm wind becoming south around 6 mph in the morning.
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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:
10:16 pm CDT Aug 1, 2025
Forecast Valid:
12am CDT Aug 2, 2025-6pm CDT Aug 8, 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