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.

Overcast

55°F

13°C

Humidity 94%
Wind Speed W 5 mph
Barometer 29.86 in
Dewpoint 54°F (12°C)
Visibility 7.00 mi
Wind Chill54°F (12°C)
Last update 25 Nov 10:50 am CST
Extended Forecast for

4 Miles ESE Bethalto IL

  • Today

    Today: Cloudy, with a high near 57. West wind 8 to 10 mph.

    High: 57 °F

    Cloudy

  • Tonight

    Tonight: Isolated showers between 7pm and 9pm. Cloudy during the early evening, then gradual clearing, with a low around 35. Breezy, with a west wind 9 to 14 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 20%.

    Low: 35 °F

    Isolated
    Showers then
    Partly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45. Breezy, with a west wind 13 to 23 mph, with gusts as high as 34 mph.

    High: 45 °F

    Mostly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26. West wind 7 to 10 mph.

    Low: 26 °F

    Partly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Sunny, with a high near 41. Northwest wind 7 to 14 mph.

    High: 41 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 21.

    Low: 21 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Snow likely, mainly after midnight. Cloudy, with a low around 29. Chance of precipitation is 60%.

    Low: 29 °F

    Slight Chance
    Snow then
    Snow Likely

  • Saturday

    Saturday: Rain and snow. High near 38. Chance of precipitation is 80%.

    High: 38 °F

    Rain/Snow

Detailed Forecast

Today
Cloudy, with a high near 57. West wind 8 to 10 mph.
Tonight
Isolated showers between 7pm and 9pm. Cloudy during the early evening, then gradual clearing, with a low around 35. Breezy, with a west wind 9 to 14 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 45. Breezy, with a west wind 13 to 23 mph, with gusts as high as 34 mph.
Wednesday Night
Partly cloudy, with a low around 26. West wind 7 to 10 mph.
Thanksgiving Day
Sunny, with a high near 41. Northwest wind 7 to 14 mph.
Thursday Night
Mostly clear, with a low around 21.
Friday
Mostly sunny, with a high near 38.
Friday Night
Snow likely, mainly after midnight. Cloudy, with a low around 29. Chance of precipitation is 60%.
Saturday
Rain and snow. High near 38. Chance of precipitation is 80%.
Saturday Night
Rain likely, mainly before midnight. Cloudy, with a low around 28. Chance of precipitation is 60%.
Sunday
A 40 percent chance of rain. Mostly cloudy, with a high near 39.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.
Monday
A 40 percent chance of rain. Mostly cloudy, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Bethalto IL
 38.88°N 89.99°W (Elev. 489 ft)
Last Update:
9:21 am CST Nov 25, 2025
Forecast Valid:
11am CST Nov 25, 2025-6pm CST Dec 1, 2025
 
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