Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

45°F

7°C

Humidity 34%
Wind Speed W 16 mph
Barometer 30.05 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 21 Jan 3:45 pm CST
Extended Forecast for

Bethalto IL

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

    Tonight: Partly cloudy, with a low around 24. Southwest wind 5 to 13 mph becoming northwest after midnight. Winds could gust as high as 24 mph.

    Low: 24 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 37. West wind 3 to 7 mph.

    High: 37 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 10. Light and variable wind becoming north 12 to 17 mph in the evening. Winds could gust as high as 24 mph.

    Low: 10 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 14. North wind 13 to 17 mph, with gusts as high as 24 mph.

    High: 14 °F

    Cold

  • Friday Night

    Friday Night: A 30 percent chance of snow after midnight.  Cloudy, with a low around 3. North wind around 11 mph.

    Low: 3 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Snow likely, mainly after noon.  Cloudy and cold, with a high near 14. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    High: 14 °F

    Snow Likely

  • Saturday Night

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

    Low: 8 °F

    Snow

  • Sunday

    Sunday: A 50 percent chance of snow, mainly before noon.  Partly sunny and cold, with a high near 19.

    High: 19 °F

    Chance Snow
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around -2.

    Low: -2 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 24. Southwest wind 5 to 13 mph becoming northwest after midnight. Winds could gust as high as 24 mph.
Thursday
Partly sunny, with a high near 37. West wind 3 to 7 mph.
Thursday Night
Mostly cloudy, with a low around 10. Light and variable wind becoming north 12 to 17 mph in the evening. Winds could gust as high as 24 mph.
Friday
Mostly cloudy and cold, with a high near 14. North wind 13 to 17 mph, with gusts as high as 24 mph.
Friday Night
A 30 percent chance of snow after midnight. Cloudy, with a low around 3. North wind around 11 mph.
Saturday
Snow likely, mainly after noon. Cloudy and cold, with a high near 14. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Saturday Night
Snow. Low around 8. Chance of precipitation is 80%.
Sunday
A 50 percent chance of snow, mainly before noon. Partly sunny and cold, with a high near 19.
Sunday Night
Partly cloudy, with a low around -2.
Monday
Sunny and cold, with a high near 15.
Monday Night
Mostly clear, with a low around 2.
Tuesday
Mostly sunny, with a high near 28.
Tuesday Night
Partly cloudy, with a low around 12.
Wednesday
Partly sunny, with a high near 25.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Bethalto IL
 38.88°N 90.02°W (Elev. 499 ft)
3:16 pm CST Jan 21, 2026
3pm CST Jan 21, 2026-6pm CST Jan 28, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database