Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
32°F
0°C
| Humidity | 52% |
| Wind Speed | N 16 G 28 mph |
| Barometer | 30.04 in (1017.6 mb) |
| Dewpoint | 16°F (-9°C) |
| Visibility | 10.00 mi |
| Wind Chill | 21°F (-6°C) |
| Last update | 14 Jan 5:52 pm CST |
Extended Forecast for
Carbondale IL
Tonight

Low: 19 °F
Clear
Thursday

High: 35 °F
Sunny
Thursday Night
Low: 28 °F⇑
Mostly Cloudy
then Slight
Chance Wintry
MixFriday

High: 46 °F
Partly Sunny
Friday Night

Low: 23 °F
Mostly Cloudy
Saturday

High: 30 °F
Partly Sunny
Saturday Night

Low: 11 °F
Partly Cloudy
Sunday

High: 26 °F
Sunny
Sunday Night

Low: 17 °F
Partly Cloudy
Detailed Forecast
Tonight
Clear, with a low around 19. North northwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 28 mph.
Thursday
Sunny, with a high near 35. Northwest wind 5 to 7 mph becoming south southwest in the afternoon.
Thursday Night
A slight chance of snow showers and freezing rain between midnight and 3am, then a slight chance of snow showers after 3am. Mostly cloudy, with a temperature falling to near 28 by 10pm, then rising to around 35 during the remainder of the night. South wind 5 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 46. West wind 10 to 13 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 23. West wind 8 to 10 mph, with gusts as high as 18 mph.
Saturday
Partly sunny, with a high near 30. West northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 11. Northwest wind 6 to 8 mph.
Sunday
Sunny, with a high near 26. Northwest wind 6 to 10 mph becoming southwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 17. South southwest wind 7 to 9 mph.
M.L.King Day
Mostly sunny, with a high near 30. Northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 12. Northwest wind 3 to 7 mph.
Tuesday
Sunny, with a high near 33. Light and variable wind becoming west southwest 5 to 9 mph in the morning.
Tuesday Night
Mostly clear, with a low around 20. South southwest wind around 8 mph.
Wednesday
Mostly sunny, with a high near 41. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.
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ABOUT THIS FORECAST
Point Forecast:
Carbondale IL
37.72°N 89.23°W
37.72°N 89.23°W
3:36 pm CST Jan 14, 2026
6pm CST Jan 14, 2026-6pm CST Jan 21, 2026


