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

41°F

5°C

Humidity 67%
Wind Speed N 13 mph
Barometer 30.20 in (1022.6 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 23 Mar 3:52 am CDT
Extended Forecast for

Carbondale IL

  • Today

    Today: Sunny, with a high near 56. North northeast wind around 14 mph, with gusts as high as 25 mph.

    High: 56 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. East northeast wind around 7 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 62. East southeast wind 5 to 7 mph.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 42. East wind around 5 mph becoming calm in the evening.

    Low: 42 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73. Calm wind becoming south 5 to 9 mph in the morning.

    High: 73 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 85. South southwest wind 9 to 15 mph, with gusts as high as 23 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 46. South southwest wind around 14 mph becoming north northwest after midnight. Winds could gust as high as 23 mph.

    Low: 46 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers. Mostly cloudy, with a high near 55. North wind around 15 mph, with gusts as high as 24 mph.

    High: 55 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 56. North northeast wind around 14 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 38. East northeast wind around 7 mph.
Tuesday
Partly sunny, with a high near 62. East southeast wind 5 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 42. East wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 73. Calm wind becoming south 5 to 9 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 59. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 85. South southwest wind 9 to 15 mph, with gusts as high as 23 mph.
Thursday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 46. South southwest wind around 14 mph becoming north northwest after midnight. Winds could gust as high as 23 mph.
Friday
A chance of showers. Mostly cloudy, with a high near 55. North wind around 15 mph, with gusts as high as 24 mph.
Friday Night
A slight chance of showers before 1am. Partly cloudy, with a low around 33. North wind 7 to 11 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 58. North northeast wind 6 to 8 mph.
Saturday Night
Partly cloudy, with a low around 37. Light and variable wind.
Sunday
Mostly sunny, with a high near 65. South wind 3 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.2°W
Last Update:
1:51 am CDT Mar 23, 2026
Forecast Valid:
4am CDT Mar 23, 2026-6pm CDT Mar 29, 2026
 
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Additional Resources

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