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

10°F

-12°C

Humidity 75%
Wind Speed NW 6 mph
Barometer 30.52 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill0°F (-18°C)
Last update 31 Jan 4:15 am CST
Extended Forecast for

2 Miles NNE Bethalto IL

  • Today

    Today: Mostly sunny and cold, with a high near 20. Wind chill values as low as -15. Northwest wind 8 to 14 mph, with gusts as high as 21 mph.

    High: 20 °F

    Cold

  • Tonight

    Tonight: Mostly clear, with a low around 0. Northwest wind around 6 mph becoming calm in the evening.

    Low: 0 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of snow after noon. Partly sunny, with a high near 28. Light south wind increasing to 5 to 10 mph in the morning.

    High: 28 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 17. South wind 5 to 7 mph becoming light and variable after midnight.

    Low: 17 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 37. West wind 3 to 6 mph.

    High: 37 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 32.

    High: 32 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny and cold, with a high near 20. Wind chill values as low as -15. Northwest wind 8 to 14 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 0. Northwest wind around 6 mph becoming calm in the evening.
Sunday
A 20 percent chance of snow after noon. Partly sunny, with a high near 28. Light south wind increasing to 5 to 10 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 17. South wind 5 to 7 mph becoming light and variable after midnight.
Monday
Mostly sunny, with a high near 37. West wind 3 to 6 mph.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 14.
Wednesday
Partly sunny, with a high near 28.
Wednesday Night
Partly cloudy, with a low around 9.
Thursday
Partly sunny, with a high near 33.
Thursday Night
Mostly cloudy, with a low around 24.
Friday
Mostly sunny, with a high near 41.
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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:
4:06 am CST Jan 31, 2026
Forecast Valid:
4am CST Jan 31, 2026-6pm CST Feb 6, 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