Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
52°F
11°C
| Humidity | 62% |
| Wind Speed | SE 9 mph |
| Barometer | 30.52 in |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 49°F (9°C) |
| Last update | 18 Oct 9:50 am CDT |
Extended Forecast for
Glen Carbon IL
Today
High: 68 °F
Sunny
Tonight
Low: 41 °F
Clear
Monday
High: 72 °F
Sunny
Monday Night
Low: 42 °F
Mostly Clear
Tuesday
High: 74 °F
Sunny
Tuesday Night
Low: 45 °F
Mostly Clear
Wednesday
High: 77 °F
Sunny
Wednesday Night
Low: 48 °F
Mostly Clear
Thursday
High: 81 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 68. South wind 5 to 9 mph.
Tonight
Clear, with a low around 41. Southeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 72. Calm wind.
Monday Night
Mostly clear, with a low around 42. Calm wind.
Tuesday
Sunny, with a high near 74. Calm wind.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 81.
Thursday Night
Clear, with a low around 49.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 50.
Saturday
Mostly sunny, with a high near 80.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Glen Carbon IL
38.75°N 89.97°W (Elev. 499 ft)
38.75°N 89.97°W (Elev. 499 ft)
8:56 am CDT Oct 18, 2026
10am CDT Oct 18, 2026-6pm CDT Oct 24, 2026
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