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

28°F

-2°C

Humidity 77%
Wind Speed N 5 mph
Barometer 30.27 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 1 Mar 3:15 am CST
Extended Forecast for

2 Miles NNE Bethalto IL

Winter Weather Advisory March 1, 06:00pm until March 2, 06:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 28. North wind around 11 mph, with gusts as high as 21 mph.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy, with a high near 47. Northeast wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 47 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain and snow, becoming all rain after 3am. Low around 33. East wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 33 °F

    Rain/Snow

  • Monday

    Monday: A chance of rain, mainly before 9am, then a slight chance of showers after noon. Cloudy, with a high near 46. East wind 8 to 10 mph. Chance of precipitation is 30%.

    High: 46 °F

    Chance Rain

  • Monday Night

    Monday Night: Showers, mainly after midnight. Low around 40. East wind around 7 mph. Chance of precipitation is 80%.

    Low: 40 °F

    Chance
    Showers then
    Showers

  • Tuesday

    Tuesday: Showers. High near 62. Chance of precipitation is 80%.

    High: 62 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, then showers and possibly a thunderstorm after midnight. Low around 54. Chance of precipitation is 80%.

    Low: 54 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 67. Chance of precipitation is 80%.

    High: 67 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.

    Low: 50 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 28. North wind around 11 mph, with gusts as high as 21 mph.
Sunday
Mostly cloudy, with a high near 47. Northeast wind 10 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Rain and snow, becoming all rain after 3am. Low around 33. East wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Monday
A chance of rain, mainly before 9am, then a slight chance of showers after noon. Cloudy, with a high near 46. East wind 8 to 10 mph. Chance of precipitation is 30%.
Monday Night
Showers, mainly after midnight. Low around 40. East wind around 7 mph. Chance of precipitation is 80%.
Tuesday
Showers. High near 62. Chance of precipitation is 80%.
Tuesday Night
Showers likely, then showers and possibly a thunderstorm after midnight. Low around 54. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 67. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Thursday
Showers likely, mainly before noon. Partly sunny, with a high near 68. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
Saturday
Showers likely. Cloudy, with a high near 63. Chance of precipitation is 60%.
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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:
1:36 am CST Mar 1, 2026
Forecast Valid:
3am CST Mar 1, 2026-6pm CST Mar 7, 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