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

7°F

-14°C

Humidity 66%
Wind Speed NW 10 mph
Barometer 30.31 in
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill-7°F (-22°C)
Last update 25 Jan 9:50 pm CST
Extended Forecast for

Bethalto IL

Extreme Cold Warning January 26, 12:00am until January 26, 12:00pm
Click here for hazard details and duration
Extreme Cold Warning

  • Tonight

    Tonight: Partly cloudy, with a low around -8. Wind chill values as low as -25. Northwest wind 8 to 10 mph.

    Low: -8 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and cold, with a high near 14. Wind chill values as low as -25. West wind 7 to 13 mph.

    High: 14 °F

    Cold

  • Monday Night

    Monday Night: Clear, with a temperature rising to around 12 by 5am. Wind chill values as low as -10. South wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 6 °F⇑

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 30. West wind 8 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 30 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around -3. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: -3 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 0 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny and cold, with a high near 18.

    High: 18 °F

    Cold

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 2.

    Low: 2 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around -8. Wind chill values as low as -25. Northwest wind 8 to 10 mph.
Monday
Sunny and cold, with a high near 14. Wind chill values as low as -25. West wind 7 to 13 mph.
Monday Night
Clear, with a temperature rising to around 12 by 5am. Wind chill values as low as -10. South wind 7 to 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 30. West wind 8 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around -3. Northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 25.
Wednesday Night
Partly cloudy, with a low around 0.
Thursday
Partly sunny and cold, with a high near 18.
Thursday Night
Mostly cloudy, with a low around 2.
Friday
Mostly sunny and cold, with a high near 17.
Friday Night
Partly cloudy, with a low around -1.
Saturday
Sunny and cold, with a high near 19.
Saturday Night
Partly cloudy, with a low around 5.
Sunday
Partly sunny, with a high near 28.
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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:
7:16 pm CST Jan 25, 2026
Forecast Valid:
10pm CST Jan 25, 2026-6pm CST Feb 1, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation