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

33°F

1°C

Humidity 85%
Wind Speed NW 8 mph
Barometer 30.25 in (1024.6 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 11 Feb 5:52 am CST
Extended Forecast for

Carbondale IL

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 49. North wind 6 to 8 mph.

    High: 49 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 29. North wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 50. Light east southeast wind.

    High: 50 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 56. Calm wind becoming south southeast around 5 mph.

    High: 56 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers. Mostly cloudy, with a high near 52. Calm wind becoming east southeast around 6 mph in the morning.

    High: 52 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 43. East wind around 7 mph.

    Low: 43 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers before noon. Mostly sunny, with a high near 54. North wind 6 to 9 mph.

    High: 54 °F

    Chance
    Showers then
    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 49. North wind 6 to 8 mph.
Tonight
Increasing clouds, with a low around 29. North wind around 5 mph becoming calm in the evening.
Thursday
Mostly cloudy, with a high near 50. Light east southeast wind.
Thursday Night
Mostly cloudy, with a low around 32. Calm wind.
Friday
Mostly sunny, with a high near 56. Calm wind becoming south southeast around 5 mph.
Friday Night
Mostly cloudy, with a low around 38. Calm wind.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 52. Calm wind becoming east southeast around 6 mph in the morning.
Saturday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 43. East wind around 7 mph.
Sunday
A chance of showers before noon. Mostly sunny, with a high near 54. North wind 6 to 9 mph.
Sunday Night
Partly cloudy, with a low around 39. North wind around 5 mph becoming calm in the evening.
Washington's Birthday
Mostly sunny, with a high near 60. Calm wind becoming south southeast 5 to 7 mph in the morning.
Monday Night
Mostly cloudy, with a low around 45. South wind 6 to 8 mph.
Tuesday
Mostly cloudy, with a high near 64. South wind 8 to 15 mph, with gusts as high as 24 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
Last Update:
5:06 am CST Feb 11, 2026
Forecast Valid:
6am CST Feb 11, 2026-6pm CST Feb 17, 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