Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
77°F
25°C
| Humidity | 28% |
| Wind Speed | S 10 mph |
| Barometer | 29.98 in |
| Dewpoint | 41°F (5°C) |
| Visibility | 10.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 19 Mar 4:45 pm CDT |
Extended Forecast for
Bethalto IL
Tonight
Low: 49 °F
Increasing
CloudsFriday
High: 80 °F
Sunny
Friday Night
Low: 50 °F
Partly Cloudy
Saturday
High: 79 °F
Sunny
Saturday Night
Low: 58 °F
Clear
Sunday
High: 83 °F
Mostly Sunny
Sunday Night
Low: 40 °F
Partly Cloudy
Monday
High: 57 °F
Mostly Sunny
Monday Night
Low: 39 °F
Partly Cloudy
Detailed Forecast
Tonight
Increasing clouds, with a low around 49. South wind 5 to 7 mph.
Friday
Sunny, with a high near 80. Southwest wind 5 to 13 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 50. Northwest wind around 6 mph becoming calm after midnight.
Saturday
Sunny, with a high near 79. Calm wind becoming southwest 5 to 7 mph in the morning.
Saturday Night
Clear, with a low around 58. South wind 6 to 9 mph.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Mostly sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Partly sunny, with a high near 60.
Tuesday Night
Mostly cloudy, with a low around 43.
Wednesday
Partly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 76.
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)
4:36 pm CDT Mar 19, 2026
5pm CDT Mar 19, 2026-6pm CDT Mar 26, 2026
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