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.

Fair

57°F

14°C

Humidity 51%
Wind Speed SW 12 mph
Barometer 29.96 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 28 Feb 12:08 am CST
Extended Forecast for

Carbondale IL

  • Overnight

    Overnight: Mostly clear, with a low around 41. Light northwest wind.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 69. North wind around 6 mph becoming south in the afternoon.

    High: 69 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: A slight chance of showers between 7pm and 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 36. South wind 6 to 10 mph becoming north after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy, with a high near 49. North northeast wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 49 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A chance of rain showers before 9pm, then rain and snow showers likely between 9pm and 3am, then rain showers likely after 3am. Cloudy, with a low around 34. Northeast wind around 9 mph. Chance of precipitation is 70%.

    Low: 34 °F

    Rain/Snow
    Likely

  • Monday

    Monday: A 50 percent chance of showers, mainly before noon. Cloudy, with a high near 45. East wind 7 to 10 mph.

    High: 45 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 40. East wind 6 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.

    Low: 40 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 65. South southwest wind 11 to 15 mph, with gusts as high as 25 mph.

    High: 65 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely, with thunderstorms also possible after midnight. Cloudy, with a low around 54. South southeast wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 54 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 41. Light northwest wind.
Saturday
Increasing clouds, with a high near 69. North wind around 6 mph becoming south in the afternoon.
Saturday Night
A slight chance of showers between 7pm and 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 36. South wind 6 to 10 mph becoming north after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Sunday
Mostly cloudy, with a high near 49. North northeast wind 9 to 11 mph, with gusts as high as 18 mph.
Sunday Night
A chance of rain showers before 9pm, then rain and snow showers likely between 9pm and 3am, then rain showers likely after 3am. Cloudy, with a low around 34. Northeast wind around 9 mph. Chance of precipitation is 70%.
Monday
A 50 percent chance of showers, mainly before noon. Cloudy, with a high near 45. East wind 7 to 10 mph.
Monday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 40. East wind 6 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.
Tuesday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 65. South southwest wind 11 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Showers likely, with thunderstorms also possible after midnight. Cloudy, with a low around 54. South southeast wind 8 to 10 mph, with gusts as high as 18 mph.
Wednesday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 68. South wind 8 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. South wind around 9 mph.
Thursday
A chance of showers. Partly sunny, with a high near 70. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 59. South wind around 8 mph.
Friday
Showers and thunderstorms likely. Mostly cloudy, with a high near 74. South southwest wind 8 to 13 mph, with gusts as high as 20 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
Last Update:
2:31 am CST Feb 28, 2026
Forecast Valid:
3am CST Feb 28, 2026-6pm CST Mar 6, 2026
 
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Additional Resources

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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