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Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Partly Cloudy and Breezy

73°F

23°C

Humidity 74%
Wind Speed S 21 G 32 mph
Barometer 29.73 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 2 Apr 4:50 pm CDT
Extended Forecast for

Bethalto IL

Wind Advisory April 2, 04:56pm until April 2, 07:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory April 2, 04:56pm until April 2, 07:00pm

    NOW until 7:00pm Thu

    Wind Advisory

  • This Afternoon

    High: 74 °F

    Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a low around 62. Breezy, with a south wind 16 to 21 mph becoming northwest 5 to 10 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely and
    Breezy then
    Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 80. Southeast wind 6 to 16 mph becoming south in the morning. Winds could gust as high as 24 mph.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 55. South wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.

    Low: 55 °F

    Showers
    Likely then
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 58. West wind 11 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

    High: 58 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 74. Breezy, with a south wind around 24 mph, with gusts as high as 37 mph.
Tonight
Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a low around 62. Breezy, with a south wind 16 to 21 mph becoming northwest 5 to 10 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 80. Southeast wind 6 to 16 mph becoming south in the morning. Winds could gust as high as 24 mph.
Friday Night
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 55. South wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 58. West wind 11 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Sunny, with a high near 57.
Sunday Night
Clear, with a low around 39.
Monday
Sunny, with a high near 61.
Monday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 35.
Tuesday
Mostly sunny, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 74.
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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:
3:16 pm CDT Apr 2, 2026
Forecast Valid:
4pm CDT Apr 2, 2026-6pm CDT Apr 9, 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