Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
69°F
21°C
| Humidity | 70% |
| Wind Speed | S 8 mph |
| Barometer | 29.79 in (1008.2 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 10.00 mi |
| Last update | 22 Mar 12:52 am CDT |
Extended Forecast for
Carbondale IL
Overnight

Low: 64 °F
Clear
Sunday

High: 87 °F
Sunny
Sunday Night
Low: 38 °F
Chance
T-storms then
Mostly ClearMonday

High: 58 °F
Mostly Sunny
Monday Night

Low: 40 °F
Mostly Cloudy
Tuesday

High: 66 °F
Mostly Sunny
Tuesday Night

Low: 46 °F
Mostly Cloudy
Wednesday

High: 74 °F
Partly Sunny
Wednesday Night
Low: 62 °F
Partly Cloudy
then Slight
Chance
T-storms
Detailed Forecast
Overnight
Clear, with a low around 64. South southwest wind around 8 mph.
Sunday
Sunny, with a high near 87. South southwest wind 9 to 16 mph, with gusts as high as 25 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 38. North wind 14 to 17 mph, with gusts as high as 31 mph.
Monday
Mostly sunny, with a high near 58. North northeast wind around 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 40. Northeast wind around 6 mph.
Tuesday
Mostly sunny, with a high near 66. Southeast wind 3 to 6 mph.
Tuesday Night
Mostly cloudy, with a low around 46. Light southeast wind.
Wednesday
Partly sunny, with a high near 74. Light south wind becoming south southwest 5 to 9 mph in the morning.
Wednesday Night
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62. South wind 7 to 9 mph.
Thursday
Sunny, with a high near 85. South southwest wind 9 to 14 mph, with gusts as high as 22 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 44. South southwest wind 11 to 13 mph becoming north after midnight. Winds could gust as high as 20 mph.
Friday
A chance of showers. Mostly cloudy, with a high near 55. North northeast wind 11 to 13 mph, with gusts as high as 21 mph.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 34. North northeast wind 7 to 10 mph, with gusts as high as 18 mph.
Saturday
Mostly sunny, with a high near 58. East northeast wind around 7 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
12:46 am CDT Mar 22, 2026
1am CDT Mar 22, 2026-6pm CDT Mar 28, 2026


