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

63°F

17°C

Humidity 35%
Wind Speed NW 13 mph
Barometer 30.25 in (1024.4 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 19 Apr 12:52 pm CDT
Extended Forecast for

Carbondale IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 67. West northwest wind around 10 mph, with gusts as high as 18 mph.

    High: 67 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 42. Calm wind becoming north northeast around 5 mph.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69. Light and variable wind becoming east around 5 mph.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50. Southeast wind 3 to 6 mph.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Southwest wind 6 to 14 mph, with gusts as high as 24 mph.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 54. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. Southwest wind 6 to 9 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 57. South wind around 6 mph.

    Low: 57 °F

    Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 81. South wind 6 to 15 mph, with gusts as high as 26 mph.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 67. West northwest wind around 10 mph, with gusts as high as 18 mph.
Tonight
Mostly clear, with a low around 42. Calm wind becoming north northeast around 5 mph.
Monday
Sunny, with a high near 69. Light and variable wind becoming east around 5 mph.
Monday Night
Mostly clear, with a low around 50. Southeast wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 77. Southwest wind 6 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
Clear, with a low around 54. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 79. Southwest wind 6 to 9 mph.
Wednesday Night
Clear, with a low around 57. South wind around 6 mph.
Thursday
Mostly sunny, with a high near 81. South wind 6 to 15 mph, with gusts as high as 26 mph.
Thursday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. South wind 11 to 14 mph, with gusts as high as 22 mph.
Friday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 78. South southwest wind 11 to 14 mph, with gusts as high as 22 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. West southwest wind 6 to 8 mph becoming north northwest after midnight.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 73. North northwest wind 7 to 9 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:
12:12 pm CDT Apr 19, 2026
Forecast Valid:
1pm CDT Apr 19, 2026-6pm CDT Apr 25, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation