Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
4°C
39°F
| Humidity | 65% |
| Wind Speed | S 19 km/h |
| Barometer | 1018.3 mb (30.07 in) |
| Dewpoint | -2°C (28°F) |
| Visibility | 16 km |
| Wind Chill | 0°C (32°F) |
| Last update | 13 Jan 3:52 am CST |
Extended Forecast for
Carbondale IL
Today

High: 16 °C
Mostly Sunny
Tonight

Low: 5 °C
Chance
ShowersWednesday

High: 8 °C⇓
Partly Sunny
Wednesday Night

Low: -7 °C
Mostly Clear
Thursday

High: 0 °C
Sunny
Thursday Night

Low: -4 °C
Mostly Cloudy
Friday

High: 8 °C
Partly Sunny
Friday Night

Low: -4 °C
Partly Cloudy
Saturday

High: 1 °C
Partly Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 16. Southwest wind 16 to 26 km/h, with gusts as high as 47 km/h.
Tonight
A 40 percent chance of showers, mainly before 1am. Cloudy, with a low around 5. Southwest wind 8 to 16 km/h becoming northwest after midnight.
Wednesday
Partly sunny, with a temperature falling to around 1 by 5pm. North northwest wind 11 to 16 km/h increasing to 22 to 27 km/h in the afternoon. Winds could gust as high as 45 km/h.
Wednesday Night
Mostly clear, with a low around -7. North northwest wind 22 to 27 km/h decreasing to 11 to 16 km/h after midnight. Winds could gust as high as 42 km/h.
Thursday
Sunny, with a high near 0. North northwest wind 8 to 11 km/h becoming south southwest in the afternoon.
Thursday Night
Mostly cloudy, with a low around -4. South wind 8 to 13 km/h increasing to 16 to 21 km/h after midnight. Winds could gust as high as 37 km/h.
Friday
Partly sunny, with a high near 8. West wind 18 to 24 km/h, with gusts as high as 40 km/h.
Friday Night
Partly cloudy, with a low around -4. West wind 13 to 16 km/h.
Saturday
Partly sunny, with a high near 1. West northwest wind 14 to 21 km/h, with gusts as high as 35 km/h.
Saturday Night
Partly cloudy, with a low around -11. West northwest wind 13 to 16 km/h.
Sunday
Sunny, with a high near -2. West northwest wind 13 to 16 km/h, with gusts as high as 29 km/h.
Sunday Night
Mostly clear, with a low around -11. West wind around 11 km/h.
M.L.King Day
Sunny, with a high near 2. West wind 10 to 16 km/h.
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ABOUT THIS FORECAST
Point Forecast:
Carbondale IL
37.72°N 89.23°W
37.72°N 89.23°W
3:16 am CST Jan 13, 2026
4am CST Jan 13, 2026-6pm CST Jan 19, 2026


