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

Hazardous Weather Conditions

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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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation