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

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

28°F

-2°C

Humidity 77%
Wind Speed S 5 mph
Barometer 29.91 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 5 Feb 10:15 pm CST
Extended Forecast for

2 Miles NNE Bethalto IL

  • Tonight

    Tonight: Partly cloudy, with a low around 28. West wind 5 to 9 mph.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 44. Southwest wind 10 to 18 mph becoming northwest in the morning. Winds could gust as high as 28 mph.

    High: 44 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 21. North wind 6 to 13 mph, with gusts as high as 21 mph.

    Low: 21 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 34. Northeast wind around 6 mph becoming southeast in the afternoon.

    High: 34 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 23. Southeast wind 6 to 10 mph.

    Low: 23 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 28. West wind 5 to 9 mph.
Friday
Increasing clouds, with a high near 44. Southwest wind 10 to 18 mph becoming northwest in the morning. Winds could gust as high as 28 mph.
Friday Night
Partly cloudy, with a low around 21. North wind 6 to 13 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 34. Northeast wind around 6 mph becoming southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 23. Southeast wind 6 to 10 mph.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Mostly clear, with a low around 28.
Monday
Sunny, with a high near 55.
Monday Night
Mostly clear, with a low around 38.
Tuesday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 63.
Tuesday Night
A 40 percent chance of rain. Cloudy, with a low around 41.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 54.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 34.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Bethalto IL
 38.92°N 90.02°W (Elev. 512 ft)
Last Update:
9:21 pm CST Feb 5, 2026
Forecast Valid:
10pm CST Feb 5, 2026-6pm CST Feb 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation