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

    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.

    High: 85 °F

    Chance
    T-storms

  • Tonight

    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.

    Low: 67 °F

    Chance
    T-storms then
    Slight Chance
    T-storms

  • Juneteenth

    Juneteenth: Sunny, with a high near 84. Northwest wind around 9 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67. Light and variable wind.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90. Light south wind increasing to 5 to 10 mph in the morning.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 95.

    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.
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ABOUT THIS FORECAST

 
Point Forecast:
Glen Carbon IL
 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
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database