National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Mostly Cloudy

29°F

-2°C

Humidity 63%
Wind Speed W 9 mph
Barometer 30.35 in (1028.1 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 10 Nov 7:52 am CST
Extended Forecast for

Grand Tower IL

  • Today

    Today: Sunny, with a high near 40. North northwest wind 9 to 17 mph, with gusts as high as 28 mph.

    High: 40 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 22. West northwest wind around 6 mph becoming calm.

    Low: 22 °F

    Clear

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 51. South southwest wind 6 to 11 mph increasing to 12 to 17 mph in the morning. Winds could gust as high as 29 mph.

    High: 51 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 37. Southwest wind 6 to 14 mph, with gusts as high as 23 mph.

    Low: 37 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65. West northwest wind 5 to 7 mph becoming light and variable in the afternoon.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 64. Calm wind becoming south around 6 mph in the afternoon.

    High: 64 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48. South wind around 6 mph.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 73. South wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 40. North northwest wind 9 to 17 mph, with gusts as high as 28 mph.
Tonight
Clear, with a low around 22. West northwest wind around 6 mph becoming calm.
Veterans Day
Mostly sunny, with a high near 51. South southwest wind 6 to 11 mph increasing to 12 to 17 mph in the morning. Winds could gust as high as 29 mph.
Tuesday Night
Mostly clear, with a low around 37. Southwest wind 6 to 14 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 65. West northwest wind 5 to 7 mph becoming light and variable in the afternoon.
Wednesday Night
Mostly clear, with a low around 36. Calm wind.
Thursday
Mostly sunny, with a high near 64. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 48. South wind around 6 mph.
Friday
Mostly sunny, with a high near 73. South wind 7 to 13 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around 55. South wind around 10 mph, with gusts as high as 18 mph.
Saturday
Mostly sunny, with a high near 72. South wind 9 to 14 mph, with gusts as high as 23 mph.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 53. South southeast wind around 10 mph, with gusts as high as 18 mph.
Sunday
A chance of showers. Partly sunny, with a high near 64. Southwest wind 9 to 11 mph, with gusts as high as 21 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Tower IL
 37.64°N 89.52°W
Last Update:
8:01 am CST Nov 10, 2025
Forecast Valid:
8am CST Nov 10, 2025-6pm CST Nov 16, 2025
 
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