Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
41°F
5°C
| Humidity | 82% |
| Wind Speed | Calm |
| Barometer | 30.03 in |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 19 Mar 3:35 am CDT |
Extended Forecast for
Bethalto IL
Today
High: 74 °F
Becoming
SunnyTonight
Low: 48 °F
Mostly Clear
Friday
High: 80 °F
Sunny
Friday Night
Low: 50 °F
Partly Cloudy
Saturday
High: 79 °F
Sunny
Saturday Night
Low: 57 °F
Mostly Clear
Sunday
High: 83 °F
Mostly Sunny
Sunday Night
Low: 39 °F
Partly Cloudy
Monday
High: 55 °F
Sunny
Detailed Forecast
Today
Partly sunny, then gradually becoming sunny, with a high near 74. Calm wind becoming south around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 48. Southeast wind 3 to 5 mph.
Friday
Sunny, with a high near 80. Light southwest wind becoming west 6 to 11 mph in the morning.
Friday Night
Partly cloudy, with a low around 50. West wind around 6 mph becoming light and variable after midnight.
Saturday
Sunny, with a high near 79. Calm wind becoming west around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 39.
Monday
Sunny, with a high near 55.
Monday Night
Partly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Mostly sunny, with a high near 69.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Bethalto IL
38.88°N 90.02°W (Elev. 499 ft)
38.88°N 90.02°W (Elev. 499 ft)
3:07 am CDT Mar 19, 2026
4am CDT Mar 19, 2026-6pm CDT Mar 25, 2026
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