Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
64°F
18°C
| Humidity | 96% |
| Wind Speed | Calm |
| Barometer | 30.04 in |
| Dewpoint | 63°F (17°C) |
| Visibility | 7.00 mi |
| Last update | 23 Aug 12:35 am CDT |
Extended Forecast for
Glen Carbon IL
Overnight
Low: 65 °F
Partly Cloudy
Saturday
High: 86 °F
Increasing
CloudsSaturday Night
Low: 59 °F
Decreasing
CloudsSunday
High: 79 °F
Sunny
Sunday Night
Low: 56 °F
Mostly Clear
Monday
High: 76 °F
Mostly Sunny
Monday Night
Low: 53 °F
Mostly Clear
Tuesday
High: 77 °F
Sunny
Tuesday Night
Low: 52 °F
Clear
Detailed Forecast
Overnight
Partly cloudy, with a low around 65. Calm wind.
Saturday
Increasing clouds, with a high near 86. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around 59. North wind around 6 mph.
Sunday
Sunny, with a high near 79. Northwest wind 6 to 11 mph.
Sunday Night
Mostly clear, with a low around 56. Northwest wind 5 to 8 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Clear, with a low around 52.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 58.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 81.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Glen Carbon IL
38.77°N 89.97°W (Elev. 548 ft)
38.77°N 89.97°W (Elev. 548 ft)
12:01 am CDT Aug 23, 2025
12am CDT Aug 23, 2025-6pm CDT Aug 29, 2025
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