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. West southwest wind around 6 mph becoming light and variable.

    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. West southwest wind around 6 mph becoming light and variable.
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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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
Last Update:
12:26 am CST Feb 28, 2026
Forecast Valid:
12am CST Feb 28, 2026-6pm CST Mar 6, 2026
 
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Additional Resources

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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