Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
Carbondale/Murphysboro, Southern Illinois Airport IL
Extreme Heat Warning July 28, 04:28am until July 28, 07:00pm
NOW until 7:00pm Tue

Extreme Heat Warning
Today

High: 96 °F
Mostly Sunny
Tonight

Low: 69 °F
Decreasing
CloudsWednesday

High: 89 °F
Sunny
Wednesday Night

Low: 65 °F
Mostly Clear
Thursday

High: 90 °F
Sunny
Thursday Night

Low: 68 °F
Partly Cloudy
Friday
High: 87 °F
Partly Sunny
then Chance
ShowersFriday Night

Low: 68 °F
Showers
Likely
Detailed Forecast
Today
Mostly sunny, with a high near 96. Heat index values as high as 109. West wind 5 to 9 mph becoming north in the afternoon.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 69. Northeast wind 3 to 8 mph.
Wednesday
Sunny, with a high near 89. Calm wind becoming north 5 to 9 mph in the morning.
Wednesday Night
Mostly clear, with a low around 65. North northeast wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 90. Light east wind.
Thursday Night
Partly cloudy, with a low around 68. Light and variable wind.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 87. Calm wind becoming south around 6 mph in the morning.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. South southeast wind around 5 mph becoming calm.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. South southeast wind 6 to 13 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 67. North wind 5 to 9 mph becoming light.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. North wind 6 to 11 mph.
Sunday Night
Mostly clear, with a low around 67. North northeast wind 5 to 7 mph becoming calm in the evening.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. Calm wind becoming east northeast around 6 mph in the morning.
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Carbondale/Murphysboro, Southern Illinois Airport IL
37.77°N 89.26°W
37.77°N 89.26°W
1:26 am CDT Jul 28, 2026
4am CDT Jul 28, 2026-6pm CDT Aug 3, 2026



