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 N 7 mph
Barometer 30.45 in
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 23 Jan 2:35 am CST
Extended Forecast for

2 Miles NNE Bethalto IL

Cold Weather Advisory until January 24, 12:00pm
Winter Storm Warning January 24, 12:00am until January 25, 06:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning
  •  
    Cold Weather Advisory until January 24, 12:00pm

    NOW until 12:00pm Sat

    Cold Weather Advisory

  • Overnight

    Low: 7 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a temperature falling to around 7 by 9am. Wind chill values as low as -10. North wind 13 to 18 mph, with gusts as high as 26 mph.

    High: 11 °F

    Cold

  • Friday Night

    Friday Night: A 20 percent chance of snow after 3am.  Mostly cloudy, with a low around 3. Wind chill values as low as -10. Northeast wind 10 to 13 mph.

    Low: 3 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: Snow, mainly after 9am.  High near 12. Wind chill values as low as -10. Northeast wind around 10 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 12 °F

    Snow Likely
    then Snow

  • Saturday Night

    Saturday Night: Snow.  Low around 9. North wind 8 to 10 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 9 °F

    Snow

  • Sunday

    Sunday: Snow likely, mainly before noon.  Cloudy and cold, with a high near 15. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 15 °F

    Snow Likely

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight.  Mostly cloudy, with a low around -1.

    Low: -1 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Monday

    Monday: Sunny and cold, with a high near 16.

    High: 16 °F

    Cold

Detailed Forecast

Overnight
Mostly cloudy, with a low around 7. North wind 11 to 16 mph, with gusts as high as 24 mph.
Friday
Partly sunny and cold, with a temperature falling to around 7 by 9am. Wind chill values as low as -10. North wind 13 to 18 mph, with gusts as high as 26 mph.
Friday Night
A 20 percent chance of snow after 3am. Mostly cloudy, with a low around 3. Wind chill values as low as -10. Northeast wind 10 to 13 mph.
Saturday
Snow, mainly after 9am. High near 12. Wind chill values as low as -10. Northeast wind around 10 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Snow. Low around 9. North wind 8 to 10 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Sunday
Snow likely, mainly before noon. Cloudy and cold, with a high near 15. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around -1.
Monday
Sunny and cold, with a high near 16.
Monday Night
Mostly clear, with a low around 4.
Tuesday
Mostly sunny, with a high near 30.
Tuesday Night
Mostly cloudy, with a low around 13.
Wednesday
Partly sunny, with a high near 25.
Wednesday Night
Partly cloudy, with a low around 3.
Thursday
Partly sunny and cold, with a high near 18.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Bethalto IL
 38.92°N 90.02°W (Elev. 512 ft)
2:41 am CST Jan 23, 2026
3am CST Jan 23, 2026-6pm CST Jan 29, 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