Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fog
48°F
9°C
| Humidity | 100% |
| Wind Speed | NE 6 mph |
| Barometer | 29.96 in (1014.6 mb) |
| Dewpoint | 48°F (9°C) |
| Visibility | 0.25 mi |
| Wind Chill | 45°F (7°C) |
| Last update | 27 Dec 5:52 am CST |
Extended Forecast for
Grand Tower IL
Dense Fog Advisory until December 27, 09:00am
NOW until 9:00am Sat
Dense Fog Advisory
Today
High: 67 °F
Areas Dense
Fog then
Mostly CloudyTonight
Low: 65 °F
Cloudy
Sunday
High: 72 °F
Mostly Cloudy
then ShowersSunday Night
Low: 23 °F
Showers and
Breezy then
Slight Chance
Showers and
BlusteryMonday
High: 30 °F
Sunny and
Blustery then
SunnyMonday Night
Low: 19 °F
Mostly Clear
Tuesday
High: 35 °F
Sunny
Tuesday Night
Low: 24 °F
Mostly Clear
Detailed Forecast
Today
Areas of dense fog before 9am. Otherwise, mostly cloudy, with a high near 67. Light and variable wind becoming south southeast 5 to 8 mph in the morning.
Tonight
Cloudy, with a steady temperature around 65. South southwest wind 8 to 13 mph, with gusts as high as 20 mph.
Sunday
Showers, mainly after 4pm. High near 72. South southwest wind 11 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Sunday Night
Showers, mainly before 9pm. Low around 23. Breezy, with a southwest wind 20 to 23 mph becoming west northwest in the evening. Winds could gust as high as 32 mph. Chance of precipitation is 90%.
Monday
Sunny, with a high near 30. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 19. Northwest wind 9 to 14 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 35. Northwest wind 6 to 8 mph becoming west southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 24. Southwest wind around 6 mph.
Wednesday
Mostly sunny, with a high near 45. West southwest wind 6 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 26. Southwest wind around 6 mph becoming northwest after midnight.
New Year's Day
Mostly sunny, with a high near 38. North northwest wind 6 to 8 mph.
Thursday Night
Partly cloudy, with a low around 18. North wind 3 to 5 mph.
Friday
Partly sunny, with a high near 35. Light and variable wind becoming north around 6 mph in the morning.
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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
3:16 am CST Dec 27, 2025
6am CST Dec 27, 2025-6pm CST Jan 2, 2026
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