Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Overcast
35°F
2°C
| Humidity | 51% |
| Wind Speed | SE 9 mph |
| Barometer | 30.04 in |
| Dewpoint | 18°F (-8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 28°F (-2°C) |
| Last update | 18 Mar 4:35 am CDT |
Extended Forecast for
Bethalto IL
Today
High: 63 °F
Becoming
SunnyTonight
Low: 42 °F
Mostly Cloudy
Thursday
High: 70 °F
Decreasing
CloudsThursday Night
Low: 46 °F
Partly Cloudy
Friday
High: 76 °F
Mostly Sunny
Friday Night
Low: 52 °F
Mostly Cloudy
Saturday
High: 78 °F
Sunny
Saturday Night
Low: 54 °F
Mostly Clear
Sunday
High: 78 °F
Mostly Sunny
Detailed Forecast
Today
Cloudy through mid morning, then gradual clearing, with a high near 63. South wind 8 to 13 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Tonight
Mostly cloudy, with a low around 42. Light and variable wind.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 70. Light and variable wind becoming south around 6 mph in the morning.
Thursday Night
Partly cloudy, with a low around 46. North wind around 5 mph becoming light and variable after midnight.
Friday
Mostly sunny, with a high near 76. Calm wind becoming southwest 5 to 9 mph in the morning.
Friday Night
Mostly cloudy, with a low around 52.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Partly sunny, with a high near 53.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
Mostly sunny, with a high near 58.
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)
1:26 am CDT Mar 18, 2026
5am CDT Mar 18, 2026-6pm CDT Mar 24, 2026
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