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

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

23°F

-5°C

Humidity 80%
Wind Speed NE 5 mph
Barometer 30.17 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 9 Feb 6:50 am CST
Extended Forecast for

2 Miles NNE Bethalto IL

  • Today

    Today: Sunny, with a high near 51. Light and variable wind becoming south around 6 mph in the afternoon.

    High: 51 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 41. Southeast wind 6 to 8 mph becoming southwest after midnight.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 57. Southwest wind 6 to 10 mph becoming north in the morning.

    High: 57 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29. North wind around 7 mph.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48. North wind around 6 mph.

    High: 48 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of rain after noon. Cloudy, with a high near 44.

    High: 44 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain and snow before midnight, then a chance of rain. Cloudy, with a low around 31. Chance of precipitation is 40%.

    Low: 31 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Friday

    Friday: A 20 percent chance of rain. Mostly cloudy, with a high near 44.

    High: 44 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Sunny, with a high near 51. Light and variable wind becoming south around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 41. Southeast wind 6 to 8 mph becoming southwest after midnight.
Tuesday
Sunny, with a high near 57. Southwest wind 6 to 10 mph becoming north in the morning.
Tuesday Night
Partly cloudy, with a low around 29. North wind around 7 mph.
Wednesday
Mostly sunny, with a high near 48. North wind around 6 mph.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
A 20 percent chance of rain after noon. Cloudy, with a high near 44.
Thursday Night
A chance of rain and snow before midnight, then a chance of rain. Cloudy, with a low around 31. Chance of precipitation is 40%.
Friday
A 20 percent chance of rain. Mostly cloudy, with a high near 44.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 30.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 44.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 32.
Sunday
A 20 percent chance of rain. Sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Bethalto IL
 38.92°N 90.02°W (Elev. 512 ft)
Last Update:
5:11 am CST Feb 9, 2026
Forecast Valid:
7am CST Feb 9, 2026-6pm CST Feb 15, 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