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Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Partly Cloudy
88°F
31°C
| Humidity | 55% |
| Wind Speed | S 8 mph |
| Barometer | 30.08 in (1018.1 mb) |
| Dewpoint | 70°F (21°C) |
| Visibility | 10.00 mi |
| Heat Index | 93°F (34°C) |
| Last update | 10 Aug 3:52 pm CDT |
Extended Forecast for
Grand Tower IL
This Afternoon
High: 93 °F
Sunny
Tonight
Low: 71 °F
Mostly Clear
Monday
High: 93 °F
Mostly Sunny
Monday Night
Low: 73 °F
Mostly Clear
Tuesday
High: 94 °F
Sunny then
Chance
T-stormsTuesday Night
Low: 73 °F
Slight Chance
T-stormsWednesday
High: 92 °F
Chance
T-stormsWednesday Night
Low: 71 °F
Slight Chance
T-stormsThursday
High: 92 °F
Mostly Sunny
then Chance
T-storms
Detailed Forecast
This Afternoon
Sunny, with a high near 93. South wind around 7 mph.
Tonight
Mostly clear, with a low around 71. South southeast wind 5 to 7 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 93. Calm wind becoming south around 6 mph in the morning.
Monday Night
Mostly clear, with a low around 73. South southeast wind around 5 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Calm wind becoming south southwest around 6 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. Light south southwest wind.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92. Light south southwest wind.
Wednesday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71. Light and variable wind.
Thursday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Light south wind.
Thursday Night
Partly cloudy, with a low around 72. Light south southeast wind.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 72. Light south wind.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 94. Calm wind becoming south southwest around 5 mph in the afternoon.
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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
2:46 pm CDT Aug 10, 2025
4pm CDT Aug 10, 2025-6pm CDT Aug 16, 2025
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