Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
88°F
31°C
| Humidity | 84% |
| Wind Speed | SW 5 mph |
| Barometer | 29.87 in |
| Dewpoint | 82°F (28°C) |
| Visibility | 10.00 mi |
| Heat Index | 109°F (43°C) |
| Last update | 26 Jul 8:52 pm CDT |
Extended Forecast for
Carbondale/Murphysboro, Southern Illinois Airport IL
Extreme Heat Warning until July 28, 07:00pm
NOW until 7:00pm Tue
Extreme Heat Warning
Tonight
Low: 77 °F
Chance
T-stormsMonday
High: 99 °F
Hot
Monday Night
Low: 80 °F
Mostly Clear
Tuesday
High: 94 °F
Sunny
Tuesday Night
Low: 70 °F
Mostly Clear
Wednesday
High: 89 °F
Sunny
Wednesday Night
Low: 67 °F
Clear
Thursday
High: 90 °F
Sunny
Detailed Forecast
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 77. Calm wind.
Monday
Sunny and hot, with a high near 99. Heat index values as high as 111. Calm wind becoming south 5 to 8 mph in the afternoon.
Monday Night
Mostly clear, with a low around 80. South wind 6 to 8 mph.
Tuesday
Sunny, with a high near 94. Heat index values as high as 105. West wind 5 to 10 mph becoming north in the afternoon.
Tuesday Night
Mostly clear, with a low around 70. North northeast wind 3 to 8 mph.
Wednesday
Sunny, with a high near 89. North wind 3 to 8 mph.
Wednesday Night
Clear, with a low around 67. North northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 90. Light east northeast wind.
Thursday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 69. Light and variable wind.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 87. Calm wind becoming south around 6 mph in the morning.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Light northeast wind becoming north northeast 5 to 10 mph in the morning.
Saturday Night
Partly cloudy, with a low around 68. North northeast wind 5 to 7 mph becoming calm in the evening.
Sunday
A slight chance of showers and thunderstorms. Sunny, with a high near 86. Light north wind becoming north northeast 5 to 9 mph in the morning.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Carbondale/Murphysboro, Southern Illinois Airport IL
37.77°N 89.26°W
37.77°N 89.26°W
9:11 pm CDT Jul 26, 2026
10pm CDT Jul 26, 2026-6pm CDT Aug 2, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
