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 55%
Wind Speed SE 9 mph
Barometer 30.16 in (1021.6 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 8 Feb 1:52 pm CST
Extended Forecast for

Carbondale IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 45. South southeast wind 6 to 8 mph.

    High: 45 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 28. East southeast wind around 6 mph becoming calm in the evening.

    Low: 28 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 54. Calm wind.

    High: 54 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40. South wind 3 to 6 mph.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 62. Southwest wind around 6 mph becoming north northwest in the afternoon.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 35. North wind around 6 mph.

    Low: 35 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 51. North wind around 6 mph.

    High: 51 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. Light northeast wind.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers after noon. Mostly cloudy, with a high near 47. East wind 3 to 6 mph.

    High: 47 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 45. South southeast wind 6 to 8 mph.
Tonight
Partly cloudy, with a low around 28. East southeast wind around 6 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 54. Calm wind.
Monday Night
Mostly clear, with a low around 40. South wind 3 to 6 mph.
Tuesday
Partly sunny, with a high near 62. Southwest wind around 6 mph becoming north northwest in the afternoon.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 35. North wind around 6 mph.
Wednesday
Mostly sunny, with a high near 51. North wind around 6 mph.
Wednesday Night
Partly cloudy, with a low around 31. Light northeast wind.
Thursday
A slight chance of showers after noon. Mostly cloudy, with a high near 47. East wind 3 to 6 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 34. East wind 3 to 5 mph.
Friday
A chance of showers. Partly sunny, with a high near 47. East northeast wind 5 to 7 mph.
Friday Night
A chance of showers. Partly cloudy, with a low around 33. East wind around 6 mph.
Saturday
A chance of showers. Mostly cloudy, with a high near 50. East southeast wind 6 to 8 mph becoming south in the afternoon.
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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:
1:27 pm CST Feb 8, 2026
Forecast Valid:
2pm CST Feb 8, 2026-6pm CST Feb 14, 2026
 
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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