Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
A Few Clouds
54°F
12°C
| Humidity | 58% |
| Wind Speed | Vrbl 3 mph |
| Barometer | 30.58 in |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Last update | 17 Oct 11:50 am CDT |
Extended Forecast for
Glen Carbon IL
Frost Advisory October 18, 01:00am until October 18, 09:00am
Today
High: 60 °F
Sunny
Tonight
Low: 38 °F
Clear
Sunday
High: 70 °F
Areas Frost
then SunnySunday Night
Low: 39 °F
Clear
Monday
High: 72 °F
Sunny
Monday Night
Low: 42 °F
Mostly Clear
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 45 °F
Mostly Clear
Wednesday
High: 79 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 60. East wind around 5 mph becoming light and variable in the afternoon.
Tonight
Clear, with a low around 38. Light and variable wind.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 70. Calm wind becoming south 5 to 7 mph in the morning.
Sunday Night
Clear, with a low around 39. Southeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 72. Light southeast wind.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 84.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Glen Carbon IL
38.75°N 90°W (Elev. 466 ft)
38.75°N 90°W (Elev. 466 ft)
11:51 am CDT Oct 17, 2026
11am CDT Oct 17, 2026-6pm CDT Oct 23, 2026
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