National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

23°F

-5°C

Humidity 65%
Wind Speed NW 8 mph
Barometer 30.41 in (1030.3 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 30 Dec 9:52 am CST
Extended Forecast for

Carbondale IL

  • Today

    Today: Increasing clouds, with a high near 35. West northwest wind around 8 mph becoming southwest in the afternoon.

    High: 35 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 28. Southwest wind around 7 mph.

    Low: 28 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 44. West northwest wind 3 to 8 mph.

    High: 44 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Clear

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 42. North northeast wind around 5 mph becoming calm in the afternoon.

    High: 42 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 49. Calm wind becoming east northeast around 5 mph.

    High: 49 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A slight chance of showers before midnight. Mostly cloudy, with a low around 29. North northeast wind 3 to 5 mph.

    Low: 29 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 44. North wind 3 to 6 mph.

    High: 44 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 35. West northwest wind around 8 mph becoming southwest in the afternoon.
Tonight
Mostly clear, with a low around 28. Southwest wind around 7 mph.
Wednesday
Increasing clouds, with a high near 44. West northwest wind 3 to 8 mph.
Wednesday Night
Mostly clear, with a low around 27. Calm wind.
New Year's Day
Mostly sunny, with a high near 42. North northeast wind around 5 mph becoming calm in the afternoon.
Thursday Night
Mostly cloudy, with a low around 31. Calm wind.
Friday
Mostly cloudy, with a high near 49. Calm wind becoming east northeast around 5 mph.
Friday Night
A slight chance of showers before midnight. Mostly cloudy, with a low around 29. North northeast wind 3 to 5 mph.
Saturday
Mostly sunny, with a high near 44. North wind 3 to 6 mph.
Saturday Night
Partly cloudy, with a low around 28. Calm wind.
Sunday
Mostly sunny, with a high near 50. Calm wind becoming south around 6 mph in the morning.
Sunday Night
Partly cloudy, with a low around 35. South wind around 5 mph becoming west southwest after midnight.
Monday
Sunny, with a high near 51. West northwest wind 5 to 7 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.2°W
Last Update:
5:41 am CST Dec 30, 2025
Forecast Valid:
10am CST Dec 30, 2025-6pm CST Jan 5, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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