Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

67°F

19°C

Humidity 83%
Wind Speed S 14 mph
Barometer 29.89 in
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 6 Mar 11:35 pm CST
Extended Forecast for

2 Miles NNE Bethalto IL

Severe T-storm Watch until March 7, 06:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until March 7, 06:00am

    NOW until 6:00am Sat

    Severe T-storm Watch

  • Tonight

    Low: 60 °F

    Severe
    Thunderstorms

  • Saturday

    Saturday: Showers, mainly before 8am.  Temperature rising to near 65 by 10am, then falling to around 55 during the remainder of the day. Southwest wind 9 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.  Chance of precipitation is 100%.

    High: 65 °F

    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. Northwest wind 6 to 11 mph becoming light west  after midnight.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 65. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 44. South wind around 7 mph.

    Low: 44 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly after midnight.  Mostly clear, with a low around 58.

    Low: 58 °F

    Chance Rain

  • Tuesday

    Tuesday: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after noon.  High near 78. Chance of precipitation is 80%.

    High: 78 °F

    Chance Rain
    then Rain

Detailed Forecast

Tonight
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 2am. Some of the storms could be severe. Low around 60. South wind 11 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%.
Saturday
Showers, mainly before 8am. Temperature rising to near 65 by 10am, then falling to around 55 during the remainder of the day. Southwest wind 9 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%.
Saturday Night
Partly cloudy, with a low around 36. Northwest wind 6 to 11 mph becoming light west after midnight.
Sunday
Sunny, with a high near 65. Light southwest wind increasing to 5 to 10 mph in the morning.
Sunday Night
Clear, with a low around 44. South wind around 7 mph.
Monday
Sunny, with a high near 77.
Monday Night
A 30 percent chance of rain, mainly after midnight. Mostly clear, with a low around 58.
Tuesday
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after noon. High near 78. Chance of precipitation is 80%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 50. Chance of precipitation is 90%.
Wednesday
Rain likely, mainly before noon. Cloudy, with a high near 58. Chance of precipitation is 70%.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Sunny, with a high near 56.
Thursday Night
Partly cloudy, with a low around 39.
Friday
Mostly sunny, with a high near 66.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Bethalto IL
 38.92°N 90.02°W (Elev. 512 ft)
10:41 pm CST Mar 6, 2026
11pm CST Mar 6, 2026-6pm CDT Mar 13, 2026
 
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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