National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

2 Miles ENE Glen Carbon IL

Freeze Warning November 2, 01:00am until November 2, 07:00am
Click here for hazard details and duration
Freeze Warning

  • This Afternoon

    This Afternoon: A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 53. West wind around 9 mph.

    High: 53 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A 20 percent chance of rain before 8pm. Widespread frost, mainly after 4am. Otherwise, partly cloudy, with a low around 31. Northwest wind around 6 mph becoming calm in the evening.

    Low: 31 °F

    Slight Chance
    Rain then
    Frost

  • Sunday

    Sunday: Widespread frost before 9am. Otherwise, sunny, with a high near 55. Calm wind becoming west around 5 mph in the afternoon.

    High: 55 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 5am. Otherwise, clear, with a low around 36. South wind 3 to 6 mph.

    Low: 36 °F

    Clear then
    Areas Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 64. South wind 6 to 9 mph becoming west in the afternoon.

    High: 64 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 53. West wind around 9 mph.
Tonight
A 20 percent chance of rain before 8pm. Widespread frost, mainly after 4am. Otherwise, partly cloudy, with a low around 31. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Widespread frost before 9am. Otherwise, sunny, with a high near 55. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Areas of frost after 5am. Otherwise, clear, with a low around 36. South wind 3 to 6 mph.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 64. South wind 6 to 9 mph becoming west in the afternoon.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Clear, with a low around 42.
Thursday
Sunny, with a high near 66.
Thursday Night
A 20 percent chance of rain. Partly cloudy, with a low around 51.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Glen Carbon IL
 38.77°N 89.94°W (Elev. 564 ft)
Last Update:
12:01 pm CDT Nov 1, 2025
Forecast Valid:
12pm CDT Nov 1, 2025-6pm CST Nov 7, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation