Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
61°F
16°C
| Humidity | 88% |
| Wind Speed | Calm |
| Barometer | 30.15 in |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 3 Oct 8:52 pm CDT |
Extended Forecast for
Alto Pass IL
Tonight
Low: 54 °F
Mostly Cloudy
Sunday
High: 77 °F
Sunny
Sunday Night
Low: 54 °F
Mostly Clear
Monday
High: 73 °F
Becoming
SunnyMonday Night
Low: 48 °F
Clear
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 50 °F
Clear
Wednesday
High: 81 °F
Sunny
Wednesday Night
Low: 53 °F
Clear
Detailed Forecast
Tonight
Mostly cloudy, with a low around 54. Light north wind.
Sunday
Sunny, with a high near 77. North wind 3 to 8 mph.
Sunday Night
Mostly clear, with a low around 54. North wind 3 to 5 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 73. Northeast wind 6 to 8 mph.
Monday Night
Clear, with a low around 48. Light east northeast wind.
Tuesday
Sunny, with a high near 75. Light east southeast wind.
Tuesday Night
Clear, with a low around 50. Calm wind.
Wednesday
Sunny, with a high near 81. Light and variable wind.
Wednesday Night
Clear, with a low around 53. Calm wind.
Thursday
Sunny, with a high near 81. Light north wind.
Thursday Night
Clear, with a low around 54. Calm wind.
Friday
Sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 56. Calm wind.
Saturday
Sunny, with a high near 83. Calm wind becoming south southeast 5 to 7 mph in the morning.
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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
9:46 pm CDT Oct 3, 2026
11pm CDT Oct 3, 2026-6pm CDT Oct 10, 2026
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