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Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
32°F
0°C
| Humidity | 55% |
| Wind Speed | NW 12 mph |
| Barometer | 30.53 in |
| Dewpoint | 18°F (-8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 23°F (-5°C) |
| Last update | 11 Jan 11:50 am CST |
Extended Forecast for
Bethalto IL
This Afternoon
High: 37 °F
Sunny
Tonight
Low: 26 °F
Clear
Monday
High: 50 °F
Sunny
Monday Night
Low: 36 °F
Partly Cloudy
Tuesday
High: 58 °F
Partly Sunny
Tuesday Night
Low: 37 °F
Mostly Cloudy
then Slight
Chance RainWednesday
High: 43 °F
Mostly Cloudy
Wednesday Night
Low: 19 °F
Partly Cloudy
Thursday
High: 37 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 37. West wind 7 to 13 mph.
Tonight
Clear, with a low around 26. South wind 5 to 7 mph.
Monday
Sunny, with a high near 50. Southwest wind 7 to 10 mph.
Monday Night
Partly cloudy, with a low around 36. Southwest wind 5 to 8 mph.
Tuesday
Partly sunny, with a high near 58. Southwest wind 9 to 14 mph, with gusts as high as 23 mph.
Tuesday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 37.
Wednesday
Mostly cloudy, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 19.
Thursday
Mostly sunny, with a high near 37.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
Mostly cloudy, with a high near 41.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
Partly sunny, with a high near 31.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Bethalto IL
38.9°N 90.05°W (Elev. 512 ft)
38.9°N 90.05°W (Elev. 512 ft)
11:06 am CST Jan 11, 2026
12pm CST Jan 11, 2026-6pm CST Jan 17, 2026
Additional Resources
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Hourly Weather Forecast
