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

46°F

8°C

Humidity 68%
Wind Speed Calm
Barometer 30.16 in (1021.5 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 12 Nov 7:52 pm CST
Extended Forecast for

Carbondale IL

  • Tonight

    Tonight: Mostly clear, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 65. Calm wind becoming south around 5 mph in the afternoon.

    High: 65 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49. South wind 3 to 6 mph.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 73. South southwest wind 6 to 9 mph.

    High: 73 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58. South southwest wind 6 to 8 mph.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 75. South southwest wind 9 to 15 mph, with gusts as high as 23 mph.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 49. Southwest wind 7 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 49 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 62. North northwest wind 5 to 8 mph.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. Light and variable wind.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 38. Calm wind.
Thursday
Mostly sunny, with a high near 65. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 49. South wind 3 to 6 mph.
Friday
Mostly sunny, with a high near 73. South southwest wind 6 to 9 mph.
Friday Night
Partly cloudy, with a low around 58. South southwest wind 6 to 8 mph.
Saturday
Mostly sunny, with a high near 75. South southwest wind 9 to 15 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 49. Southwest wind 7 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 62. North northwest wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 41. Light and variable wind.
Monday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 60. East southeast wind 3 to 8 mph.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 47. Southeast wind 6 to 8 mph.
Tuesday
A chance of showers. Partly sunny, with a high near 61. South southeast wind 7 to 10 mph becoming west southwest in the afternoon.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 44. South wind 3 to 6 mph.
Wednesday
A chance of showers. Mostly cloudy, with a high near 57. South southwest wind 3 to 7 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:
7:52 pm CST Nov 12, 2025
Forecast Valid:
8pm CST Nov 12, 2025-6pm CST Nov 19, 2025
 
Forecast Discussion
 
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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