Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Mostly Cloudy
76°F
24°C
| Humidity | 85% |
| Wind Speed | N 5 mph |
| Barometer | 30.03 in (1016.4 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 77°F (25°C) |
| Last update | 14 Oct 5:52 pm CDT |
Extended Forecast for
Carbondale IL
Tonight

Low: 67 °F
Chance
T-stormsThursday
High: 87 °F
Chance
Showers then
Slight Chance
T-stormsThursday Night
Low: 52 °F
Slight Chance
T-storms then
Chance
ShowersFriday

High: 59 °F
Decreasing
CloudsFriday Night

Low: 42 °F
Mostly Cloudy
Saturday

High: 61 °F
Sunny
Saturday Night

Low: 38 °F
Clear
Sunday

High: 67 °F
Sunny
Sunday Night

Low: 42 °F
Mostly Clear
Detailed Forecast
Tonight
A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.
Thursday
A 40 percent chance of showers and thunderstorms, mainly before noon. Cloudy through mid morning, then gradual clearing, with a high near 87. Light and variable wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
A slight chance of showers and thunderstorms before 3am, then a chance of showers between 3am and 4am. Increasing clouds, with a low around 52. South southwest wind 6 to 16 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 40%.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 59. Northwest wind around 18 mph, with gusts as high as 28 mph.
Friday Night
Mostly cloudy, with a low around 42. North northwest wind 10 to 15 mph, with gusts as high as 22 mph.
Saturday
Sunny, with a high near 61. North wind 6 to 10 mph.
Saturday Night
Clear, with a low around 38. Calm wind.
Sunday
Sunny, with a high near 67. Calm wind becoming southeast around 5 mph in the morning.
Sunday Night
Mostly clear, with a low around 42. Calm wind.
Monday
Mostly sunny, with a high near 71. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 47. Calm wind.
Tuesday
Mostly sunny, with a high near 75. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 50. Calm wind.
Wednesday
Sunny, with a high near 78. Calm wind becoming south around 5 mph in the afternoon.
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
5:06 pm CDT Oct 14, 2026
6pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026



