


Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fog/Mist
70°F
21°C
Humidity | 99% |
Wind Speed | E 3 mph |
Barometer | 29.82 in |
Dewpoint | 70°F (21°C) |
Visibility | 5.00 mi |
Last update | 18 Jun 4:15 am CDT |
Extended Forecast for
Glen Carbon IL
Today
High: 85 °F
Chance
T-stormsTonight
Low: 67 °F
Chance
T-storms then
Slight Chance
T-stormsJuneteenth
High: 84 °F
Sunny
Thursday Night
Low: 67 °F
Mostly Clear
Friday
High: 90 °F
Sunny
Friday Night
Low: 74 °F
Mostly Clear
Saturday
High: 94 °F
Sunny
Saturday Night
Low: 76 °F
Mostly Clear
Sunday
High: 95 °F
Sunny
Detailed Forecast
Today
A 50 percent chance of showers and thunderstorms, mainly after 7am. Mostly cloudy, with a high near 85. South wind 7 to 17 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 67. Southwest wind 7 to 10 mph.
Juneteenth
Sunny, with a high near 84. Northwest wind around 9 mph.
Thursday Night
Mostly clear, with a low around 67. Light and variable wind.
Friday
Sunny, with a high near 90. Light south wind increasing to 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 74.
Saturday
Sunny, with a high near 94.
Saturday Night
Mostly clear, with a low around 76.
Sunday
Sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 76.
Monday
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 75.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 92.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Glen Carbon IL
38.74°N 89.94°W (Elev. 568 ft)
38.74°N 89.94°W (Elev. 568 ft)
2:52 am CDT Jun 18, 2025
4am CDT Jun 18, 2025-6pm CDT Jun 24, 2025