Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
34°F
1°C
| Humidity | 100% |
| Wind Speed | Calm |
| Barometer | 30.10 in (1019.6 mb) |
| Dewpoint | 34°F (1°C) |
| Visibility | 7.00 mi |
| Last update | 16 Feb 7:52 am CST |
Extended Forecast for
Carbondale IL
Dense Fog Advisory February 16, 08:16am until February 16, 09:00am
NOW until 9:00am Mon
Dense Fog Advisory
Washington's Birthday
High: 63 °F
Areas Dense
Fog then
Mostly SunnyTonight

Low: 44 °F
Partly Cloudy
Tuesday

High: 64 °F
Mostly Cloudy
Tuesday Night

Low: 58 °F
Mostly Cloudy
and BreezyWednesday

High: 73 °F
Mostly Sunny
Wednesday Night
Low: 50 °F
Mostly Clear
then Slight
Chance
ShowersThursday
High: 72 °F
Chance
Showers then
Chance
T-stormsThursday Night
Low: 42 °F
Chance
T-storms then
Partly Cloudy
Detailed Forecast
Washington's Birthday
Areas of dense fog before 9am. Otherwise, mostly sunny, with a high near 63. Light south wind becoming south southwest 5 to 9 mph in the morning.
Tonight
Partly cloudy, with a low around 44. South wind 6 to 8 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 29 mph.
Tuesday Night
Mostly cloudy, with a low around 58. Breezy, with a south wind 18 to 22 mph, with gusts as high as 33 mph.
Wednesday
Mostly sunny, with a high near 73. Southwest wind 9 to 18 mph, with gusts as high as 30 mph.
Wednesday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 50. South southwest wind 6 to 8 mph.
Thursday
A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 72. South wind 6 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42. West wind 9 to 11 mph, with gusts as high as 20 mph.
Friday
A slight chance of showers after noon. Mostly sunny, with a high near 57. West wind 7 to 10 mph, with gusts as high as 18 mph.
Friday Night
A chance of showers, mainly after midnight. Mostly cloudy, with a low around 34. North northwest wind around 6 mph.
Saturday
A slight chance of showers. Partly sunny, with a high near 51. North northwest wind 5 to 8 mph.
Saturday Night
A chance of showers. Partly cloudy, with a low around 31. Northwest wind around 8 mph.
Sunday
A slight chance of showers. Mostly sunny, with a high near 45. Northwest wind 8 to 11 mph, with gusts as high as 20 mph.
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ABOUT THIS FORECAST
Point Forecast:
Carbondale IL
37.72°N 89.23°W
37.72°N 89.23°W
7:32 am CST Feb 16, 2026
8am CST Feb 16, 2026-6pm CST Feb 22, 2026



