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

55°F

13°C

Humidity 44%
Wind Speed N 14 G 23 mph
Barometer 30.00 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 10 Feb 4:50 pm CST
Extended Forecast for

2 Miles NNE Bethalto IL

  • Tonight

    Tonight: Mostly clear, with a low around 28. North wind 5 to 11 mph, with gusts as high as 28 mph.

    Low: 28 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 49. Northwest wind 5 to 8 mph.

    High: 49 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 30. Northwest wind around 5 mph becoming calm in the evening.

    Low: 30 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy, with a high near 47. Calm wind becoming southeast 5 to 7 mph in the morning.

    High: 47 °F

    Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 32. Southeast wind around 6 mph.

    Low: 32 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of rain, mainly after noon. Cloudy, with a high near 51.

    High: 51 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 28. North wind 5 to 11 mph, with gusts as high as 28 mph.
Wednesday
Sunny, with a high near 49. Northwest wind 5 to 8 mph.
Wednesday Night
Increasing clouds, with a low around 30. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Cloudy, with a high near 47. Calm wind becoming southeast 5 to 7 mph in the morning.
Thursday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 32. Southeast wind around 6 mph.
Friday
Mostly sunny, with a high near 52.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
A 40 percent chance of rain, mainly after noon. Cloudy, with a high near 51.
Saturday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 39.
Sunday
A 30 percent chance of rain before noon. Mostly sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 34.
Washington's Birthday
Sunny, with a high near 59.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
Partly sunny, with a high near 63.
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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:
4:51 pm CST Feb 10, 2026
Forecast Valid:
5pm CST Feb 10, 2026-6pm CST Feb 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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