Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

22°F

-6°C

Humidity 46%
Wind Speed NW 6 mph
Barometer 30.32 in
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 22 Jan 3:35 am CST
Extended Forecast for

Bethalto IL

Winter Storm Watch January 24, 12:00am until January 25, 12:00pm
Cold Weather Advisory January 24, 12:00am until January 24, 12:00pm
Click here for hazard details and duration
Winter Storm Watch
Cold Weather Advisory
  • Overnight

    Overnight: Partly cloudy, with a low around 21. West wind 5 to 7 mph.

    Low: 21 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 37. West wind 5 to 7 mph.

    High: 37 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 9. Light and variable wind becoming north 11 to 16 mph in the evening. Winds could gust as high as 24 mph.

    Low: 9 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 13. North wind 13 to 17 mph, with gusts as high as 24 mph.

    High: 13 °F

    Cold

  • Friday Night

    Friday Night: A 20 percent chance of snow after midnight.  Mostly cloudy, with a low around 4. Northeast wind around 11 mph.

    Low: 4 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: Snow likely, mainly after noon.  Cloudy and cold, with a high near 13. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 13 °F

    Chance Snow
    then Snow
    Likely

  • Saturday Night

    Saturday Night: Snow.  Low around 8. Chance of precipitation is 80%.

    Low: 8 °F

    Snow

  • Sunday

    Sunday: A 40 percent chance of snow, mainly before noon.  Mostly cloudy and cold, with a high near 17.

    High: 17 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 0.

    Low: 0 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 21. West wind 5 to 7 mph.
Thursday
Partly sunny, with a high near 37. West wind 5 to 7 mph.
Thursday Night
Mostly cloudy, with a low around 9. Light and variable wind becoming north 11 to 16 mph in the evening. Winds could gust as high as 24 mph.
Friday
Mostly cloudy and cold, with a high near 13. North wind 13 to 17 mph, with gusts as high as 24 mph.
Friday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 4. Northeast wind around 11 mph.
Saturday
Snow likely, mainly after noon. Cloudy and cold, with a high near 13. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Snow. Low around 8. Chance of precipitation is 80%.
Sunday
A 40 percent chance of snow, mainly before noon. Mostly cloudy and cold, with a high near 17.
Sunday Night
Partly cloudy, with a low around 0.
Monday
Sunny, with a high near 21.
Monday Night
Mostly clear, with a low around 8.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Mostly cloudy, with a low around 14.
Wednesday
Partly sunny, with a high near 29.
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ABOUT THIS FORECAST

 
Point Forecast:
Bethalto IL
 38.88°N 90.02°W (Elev. 499 ft)
3:16 am CST Jan 22, 2026
3am CST Jan 22, 2026-6pm CST Jan 28, 2026
 
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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