Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Overcast
47°F
8°C
| Humidity | 93% |
| Wind Speed | N 14 mph |
| Barometer | 29.92 in (1013.3 mb) |
| Dewpoint | 45°F (7°C) |
| Visibility | 9.00 mi |
| Wind Chill | 41°F (5°C) |
| Last update | 15 Feb 10:52 am CST |
Extended Forecast for
Carbondale IL
Today

High: 55 °F
Decreasing
CloudsTonight
Low: 37 °F
Partly Cloudy
then Patchy
FogWashington's Birthday
High: 62 °F
Areas Fog
then Mostly
SunnyMonday Night

Low: 44 °F
Partly Cloudy
Tuesday

High: 64 °F
Mostly Cloudy
Tuesday Night

Low: 59 °F
Mostly Cloudy
and BreezyWednesday

High: 73 °F
Mostly Sunny
Wednesday Night

Low: 53 °F
Mostly Clear
Thursday
High: 74 °F
Mostly Sunny
then Slight
Chance
T-storms
Detailed Forecast
Today
Cloudy, then gradually becoming mostly sunny, with a high near 55. North northeast wind 7 to 14 mph, with gusts as high as 23 mph.
Tonight
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 37. North wind around 6 mph becoming calm in the evening.
Washington's Birthday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 62. Calm wind becoming south southwest 5 to 9 mph in the morning.
Monday Night
Partly cloudy, with a low around 44. South wind around 6 mph.
Tuesday
Mostly cloudy, with a high near 64. South wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph.
Tuesday Night
Mostly cloudy, with a low around 59. Breezy, with a south southwest wind 18 to 22 mph, with gusts as high as 34 mph.
Wednesday
Mostly sunny, with a high near 73. Southwest wind 11 to 18 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 53. South southwest wind 6 to 10 mph.
Thursday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74. South southwest wind 6 to 14 mph, with gusts as high as 24 mph.
Thursday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 44. South southwest wind 7 to 10 mph becoming west after midnight. Winds could gust as high as 18 mph.
Friday
A chance of showers. Partly sunny, with a high near 57. West northwest wind 7 to 9 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 35. North wind around 7 mph.
Saturday
A chance of showers. Mostly sunny, with a high near 51. North northwest wind 6 to 8 mph.
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ABOUT THIS FORECAST
Point Forecast:
Carbondale IL
37.72°N 89.23°W
37.72°N 89.23°W
10:27 am CST Feb 15, 2026
11am CST Feb 15, 2026-6pm CST Feb 21, 2026


