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Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
Bethalto IL
Overnight

Low: 28 °F
Cloudy
Wednesday

High: 42 °F
Becoming
SunnyWednesday Night

Low: 23 °F
Mostly Clear
Thursday

High: 36 °F
Partly Sunny
Thursday Night

Low: 8 °F
Mostly Cloudy
Friday

High: 13 °F
Cold
Friday Night
Low: 2 °F
Mostly Cloudy
then Slight
Chance SnowSaturday

High: 14 °F
Chance Snow
Saturday Night

Low: 7 °F
Chance Snow
Detailed Forecast
Overnight
Cloudy, with a low around 28. South wind around 11 mph, with gusts as high as 20 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 42. West wind 10 to 14 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 23. Southwest wind 7 to 11 mph becoming northwest after midnight. Winds could gust as high as 23 mph.
Thursday
Partly sunny, with a high near 36. Northwest wind around 6 mph.
Thursday Night
Mostly cloudy, with a low around 8. Light north wind increasing to 9 to 14 mph in the evening. Winds could gust as high as 21 mph.
Friday
Mostly cloudy and cold, with a high near 13.
Friday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 2.
Saturday
A 40 percent chance of snow, mainly after noon. Cloudy and cold, with a high near 14.
Saturday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 7.
Sunday
Partly sunny, with a high near 21.
Sunday Night
Partly cloudy, with a low around 5.
Monday
Mostly sunny, with a high near 24.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Mostly sunny, with a high near 35.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Bethalto IL
38.88°N 90.02°W (Elev. 499 ft)
38.88°N 90.02°W (Elev. 499 ft)
2:46 am CST Jan 21, 2026
2am CST Jan 21, 2026-6pm CST Jan 27, 2026


