Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
35°F
2°C
| Humidity | 96% |
| Wind Speed | Calm |
| Barometer | 30.52 in (1033.6 mb) |
| Dewpoint | 34°F (1°C) |
| Visibility | 10.00 mi |
| Last update | 18 Oct 7:52 am CDT |
Extended Forecast for
3 Miles S Altenburg MO
Today
High: 69 °F
Sunny
Tonight
Low: 39 °F
Clear
Monday
High: 73 °F
Sunny
Monday Night
Low: 41 °F
Mostly Clear
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 43 °F
Mostly Clear
Wednesday
High: 76 °F
Sunny
Wednesday Night
Low: 44 °F
Clear
Thursday
High: 78 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 69. Light south southeast wind.
Tonight
Clear, with a low around 39. Calm wind.
Monday
Sunny, with a high near 73. Calm wind.
Monday Night
Mostly clear, with a low around 41. Calm wind.
Tuesday
Sunny, with a high near 75. Calm wind.
Tuesday Night
Mostly clear, with a low around 43. Calm wind.
Wednesday
Sunny, with a high near 76. Calm wind.
Wednesday Night
Clear, with a low around 44. Calm wind.
Thursday
Sunny, with a high near 78. Calm wind.
Thursday Night
Clear, with a low around 46. Calm wind.
Friday
Sunny, with a high near 78. Light east wind.
Friday Night
Mostly clear, with a low around 46. Calm wind.
Saturday
Sunny, with a high near 79. Light south southeast wind.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles S Altenburg MO
37.6°N 89.57°W
37.6°N 89.57°W
8:21 am CDT Oct 18, 2026
8am CDT Oct 18, 2026-6pm CDT Oct 24, 2026
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