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.

Partly Cloudy

68°F

20°C

Humidity 76%
Wind Speed W 7 mph
Barometer 29.73 in (1006.4 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 15 Nov 6:52 pm CST
Extended Forecast for

Carbondale IL

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 46. West wind around 8 mph becoming north northwest after midnight.

    Low: 46 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 60. North wind 5 to 9 mph.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 60. Calm wind becoming southeast 5 to 7 mph in the morning.

    High: 60 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 49. Southeast wind 6 to 9 mph. Chance of precipitation is 70%.

    Low: 49 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 73. South southwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 73 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 53. Southwest wind 5 to 7 mph.

    Low: 53 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 68. South southwest wind around 6 mph.

    High: 68 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after midnight. Mostly cloudy, with a low around 55. Light and variable wind becoming southeast around 6 mph after midnight.

    Low: 55 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 46. West wind around 8 mph becoming north northwest after midnight.
Sunday
Sunny, with a high near 60. North wind 5 to 9 mph.
Sunday Night
Mostly clear, with a low around 37. Calm wind.
Monday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 60. Calm wind becoming southeast 5 to 7 mph in the morning.
Monday Night
Showers likely, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 49. Southeast wind 6 to 9 mph. Chance of precipitation is 70%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 73. South southwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 53. Southwest wind 5 to 7 mph.
Wednesday
A chance of showers. Mostly cloudy, with a high near 68. South southwest wind around 6 mph.
Wednesday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 55. Light and variable wind becoming southeast around 6 mph after midnight.
Thursday
Showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 68. South southeast wind 6 to 9 mph.
Thursday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 55. South wind 8 to 10 mph.
Friday
Showers likely. Partly sunny, with a high near 66. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 44. Southwest wind 6 to 8 mph becoming west northwest after midnight.
Saturday
A slight chance of showers. Partly sunny, with a high near 57. Northwest wind 5 to 8 mph.
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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:
3:21 pm CST Nov 15, 2025
Forecast Valid:
7pm CST Nov 15, 2025-6pm CST Nov 22, 2025
 
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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