Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
12°F
-11°C
| Humidity | 70% |
| Wind Speed | Calm |
| Barometer | 30.46 in (1032.1 mb) |
| Dewpoint | 4°F (-16°C) |
| Visibility | 10.00 mi |
| Last update | 19 Jan 10:52 pm CST |
Extended Forecast for
Carbondale IL
Tonight

Low: 12 °F
Clear
Tuesday

High: 37 °F
Sunny
Tuesday Night

Low: 28 °F
Partly Cloudy
Wednesday

High: 47 °F
Mostly Sunny
Wednesday Night

Low: 26 °F
Mostly Clear
Thursday

High: 39 °F
Mostly Sunny
Thursday Night

Low: 17 °F
Partly Cloudy
Friday
High: 25 °F
Mostly Cloudy
then Slight
Chance Snow
ShowersFriday Night

Low: 5 °F
Chance Snow
Showers
Detailed Forecast
Tonight
Clear, with a low around 12. Calm wind.
Tuesday
Sunny, with a high near 37. Light south southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 28. South wind 8 to 15 mph, with gusts as high as 26 mph.
Wednesday
Mostly sunny, with a high near 47. South southwest wind 6 to 15 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly clear, with a low around 26. Southwest wind around 5 mph becoming northwest after midnight.
Thursday
Mostly sunny, with a high near 39. North wind around 6 mph becoming calm in the afternoon.
Thursday Night
Partly cloudy, with a low around 17. Calm wind becoming north 5 to 8 mph after midnight.
Friday
A slight chance of snow showers after noon. Mostly cloudy, with a high near 25. North wind 9 to 13 mph, with gusts as high as 21 mph.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 5. North wind 11 to 13 mph, with gusts as high as 22 mph.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 16. North wind 9 to 11 mph, with gusts as high as 20 mph.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 7. North wind 7 to 9 mph.
Sunday
A slight chance of snow showers. Mostly sunny, with a high near 23. North wind 5 to 7 mph.
Sunday Night
Mostly clear, with a low around 9. Light and variable wind becoming southwest around 5 mph after midnight.
Monday
Sunny, with a high near 33. West southwest wind around 6 mph.
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Carbondale IL
37.72°N 89.23°W
37.72°N 89.23°W
10:51 pm CST Jan 19, 2026
11pm CST Jan 19, 2026-6pm CST Jan 26, 2026



