Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

48°F

9°C

Humidity 46%
Wind Speed S 6 mph
Barometer 30.33 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 24 Mar 10:50 am CDT
Extended Forecast for

Bethalto IL

  • Today

    Today: Mostly sunny, with a high near 61. Southeast wind around 10 mph.

    High: 61 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Southeast wind 5 to 8 mph.

    Low: 43 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. Southeast wind 6 to 13 mph becoming south in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62. South wind around 10 mph.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89. Southwest wind 10 to 15 mph, with gusts as high as 24 mph.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm, mainly before 4am, then rain after 4am.  Low around 43. Chance of precipitation is 80%.

    Low: 43 °F

    Showers

  • Friday

    Friday: Rain, mainly before 7am.  High near 51. Chance of precipitation is 80%.

    High: 51 °F

    Rain then
    Chance Rain

  • Friday Night

    Friday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 61. Southeast wind around 10 mph.
Tonight
Mostly cloudy, with a low around 43. Southeast wind 5 to 8 mph.
Wednesday
Mostly sunny, with a high near 76. Southeast wind 6 to 13 mph becoming south in the afternoon.
Wednesday Night
Mostly clear, with a low around 62. South wind around 10 mph.
Thursday
Sunny, with a high near 89. Southwest wind 10 to 15 mph, with gusts as high as 24 mph.
Thursday Night
Showers and possibly a thunderstorm, mainly before 4am, then rain after 4am. Low around 43. Chance of precipitation is 80%.
Friday
Rain, mainly before 7am. High near 51. Chance of precipitation is 80%.
Friday Night
Mostly clear, with a low around 31.
Saturday
Sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Bethalto IL
 38.88°N 90.02°W (Elev. 499 ft)
2:56 am CDT Mar 24, 2026
10am CDT Mar 24, 2026-6pm CDT Mar 30, 2026
 
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Additional Resources

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