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Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
45°F
7°C
| Humidity | 44% |
| Wind Speed | Calm |
| Barometer | 30.29 in (1026.1 mb) |
| Dewpoint | 24°F (-4°C) |
| Visibility | 10.00 mi |
| Last update | 14 Nov 4:52 pm CST |
Extended Forecast for
Grand Tower IL
This Afternoon
High: 47 °F
Sunny
Tonight
Low: 27 °F
Mostly Clear
Sunday
High: 57 °F
Mostly Sunny
Sunday Night
Low: 26 °F
Mostly Clear
Monday
High: 59 °F
Sunny
Monday Night
Low: 28 °F
Clear
Tuesday
High: 61 °F
Sunny
Tuesday Night
Low: 31 °F
Clear
Wednesday
High: 65 °F
Sunny
Detailed Forecast
This Afternoon
Sunny, with a steady temperature around 47. Calm wind.
Tonight
Mostly clear, with a low around 27. Calm wind.
Sunday
Mostly sunny, with a high near 57. Calm wind.
Sunday Night
Mostly clear, with a low around 26. Calm wind.
Monday
Sunny, with a high near 59. Calm wind.
Monday Night
Clear, with a low around 28. Calm wind.
Tuesday
Sunny, with a high near 61. Light and variable wind.
Tuesday Night
Clear, with a low around 31. Calm wind.
Wednesday
Sunny, with a high near 65. Calm wind becoming south 5 to 8 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 39. South wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 67. South wind 3 to 7 mph.
Thursday Night
Partly cloudy, with a low around 45. Calm wind.
Friday
Mostly sunny, with a high near 71. Calm wind becoming south around 6 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Grand Tower IL
37.64°N 89.52°W
37.64°N 89.52°W
3:46 pm CST Nov 14, 2026
4pm CST Nov 14, 2026-6pm CST Nov 20, 2026
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