Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
70°F
21°C
| Humidity | 43% |
| Wind Speed | E 12 mph |
| Barometer | 30.27 in |
| Dewpoint | 46°F (8°C) |
| Visibility | 10.00 mi |
| Last update | 5 Oct 10:58 am CDT |
Extended Forecast for
Grand Tower IL
This Afternoon
High: 78 °F
Sunny
Tonight
Low: 49 °F
Clear
Tuesday
High: 78 °F
Sunny
Tuesday Night
Low: 52 °F
Clear
Wednesday
High: 85 °F
Sunny
Wednesday Night
Low: 58 °F
Clear
Thursday
High: 84 °F
Sunny
Thursday Night
Low: 55 °F
Clear
Friday
High: 81 °F
Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 78. Northeast wind around 6 mph.
Tonight
Clear, with a low around 49. Calm wind.
Tuesday
Sunny, with a high near 78. Light and variable wind.
Tuesday Night
Clear, with a low around 52. Calm wind.
Wednesday
Sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 58. South southwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
Clear, with a low around 55. Light east wind.
Friday
Sunny, with a high near 81. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 54. Light east wind.
Saturday
Sunny, with a high near 82. Calm wind becoming south southeast 5 to 7 mph in the morning.
Saturday Night
Partly cloudy, with a low around 58. Light southeast wind.
Sunday
A slight chance of showers. Mostly sunny, with a high near 79. East southeast wind 3 to 8 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Grand Tower IL
37.62°N 89.49°W
37.62°N 89.49°W
11:31 am CDT Oct 5, 2026
12pm CDT Oct 5, 2026-6pm CDT Oct 11, 2026
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