Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
72°F
22°C
| Humidity | 97% |
| Wind Speed | Calm |
| Barometer | 30.01 in (1015.9 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 8.00 mi |
| Last update | 14 Oct 8:52 pm CDT |
Extended Forecast for
Grand Tower IL
Tonight
Low: 66 °F
Slight Chance
Showers then
Chance
T-stormsThursday
High: 88 °F
Chance
T-stormsThursday Night
Low: 51 °F
Slight Chance
T-storms then
Chance
ShowersFriday
High: 59 °F
Partly Sunny
Friday Night
Low: 41 °F
Partly Cloudy
Saturday
High: 62 °F
Sunny
Saturday Night
Low: 37 °F
Clear
Sunday
High: 68 °F
Sunny
Sunday Night
Low: 41 °F
Mostly Clear
Detailed Forecast
Tonight
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 5pm. Cloudy through mid morning, then gradual clearing, with a high near 88. Light and variable wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 40%.
Thursday Night
A slight chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am. Increasing clouds, with a low around 51. South southwest wind 5 to 15 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 59. Northwest wind 16 to 18 mph, with gusts as high as 28 mph.
Friday Night
Partly cloudy, with a low around 41. North wind 9 to 14 mph, with gusts as high as 22 mph.
Saturday
Sunny, with a high near 62. North wind 6 to 9 mph.
Saturday Night
Clear, with a low around 37. Calm wind.
Sunday
Sunny, with a high near 68. Calm wind becoming south southeast around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 41. Calm wind.
Monday
Mostly sunny, with a high near 73. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 45. Calm wind.
Tuesday
Mostly sunny, with a high near 76. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 49. Calm wind.
Wednesday
Sunny, with a high near 79. Calm wind becoming south around 5 mph in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Grand Tower IL
37.64°N 89.49°W
37.64°N 89.49°W
9:22 pm CDT Oct 14, 2026
9pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026
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