Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Partly Cloudy
88°F
31°C
| Humidity | 43% |
| Wind Speed | N 13 mph |
| Barometer | 30.01 in |
| Dewpoint | 63°F (17°C) |
| Visibility | 10.00 mi |
| Heat Index | 89°F (32°C) |
| Last update | 27 Aug 2:52 pm CDT |
Extended Forecast for
Alto Pass IL
This Afternoon
High: 87 °F
Sunny
Tonight
Low: 66 °F
Mostly Clear
Friday
High: 86 °F
Sunny
Friday Night
Low: 64 °F
Mostly Clear
Saturday
High: 88 °F
Sunny
Saturday Night
Low: 67 °F
Mostly Clear
Sunday
High: 92 °F
Sunny
Sunday Night
Low: 71 °F
Mostly Clear
Monday
High: 93 °F
Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 87. North wind around 7 mph.
Tonight
Mostly clear, with a low around 66. Light north northeast wind.
Friday
Sunny, with a high near 86. Calm wind becoming north northeast around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 64. Calm wind.
Saturday
Sunny, with a high near 88. Light and variable wind.
Saturday Night
Mostly clear, with a low around 67. Calm wind.
Sunday
Sunny, with a high near 92. South wind 3 to 8 mph.
Sunday Night
Mostly clear, with a low around 71. South wind 3 to 5 mph.
Monday
Sunny, with a high near 93. South wind 5 to 8 mph.
Monday Night
Mostly clear, with a low around 73. South wind 3 to 5 mph.
Tuesday
Sunny, with a high near 94. South southwest wind 3 to 8 mph.
Tuesday Night
Mostly clear, with a low around 74. South wind 3 to 5 mph.
Wednesday
Sunny, with a high near 95. Southwest wind 3 to 7 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Alto Pass IL
37.57°N 89.32°W
37.57°N 89.32°W
1:26 pm CDT Aug 27, 2026
3pm CDT Aug 27, 2026-6pm CDT Sep 2, 2026
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