Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
81°F
27°C
| Humidity | 30% |
| Wind Speed | NW 13 mph |
| Barometer | 29.92 in |
| Dewpoint | 46°F (8°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 20 Mar 12:45 pm CDT |
Extended Forecast for
Bethalto IL
This Afternoon

High: 85 °F
Sunny
Tonight

Low: 50 °F
Partly Cloudy
Saturday

High: 81 °F
Sunny
Saturday Night

Low: 61 °F
Mostly Clear
Sunday

High: 85 °F
Mostly Sunny
Sunday Night
Low: 39 °F
Mostly Cloudy
and Breezy
then Partly
CloudyMonday

High: 57 °F
Sunny
Monday Night

Low: 39 °F
Partly Cloudy
Tuesday

High: 60 °F
Partly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 85. West wind 11 to 14 mph, with gusts as high as 22 mph.
Tonight
Partly cloudy, with a low around 50. Northwest wind 5 to 7 mph becoming light and variable.
Saturday
Sunny, with a high near 81. East wind 5 to 8 mph becoming southwest in the afternoon.
Saturday Night
Mostly clear, with a low around 61. South wind 7 to 9 mph.
Sunday
Mostly sunny, with a high near 85. South wind 9 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 39. Breezy.
Monday
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
A 20 percent chance of rain and thunderstorms after 1am. Partly cloudy, with a low around 42.
Wednesday
Mostly cloudy, with a high near 66.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
A 20 percent chance of rain. Sunny, with a high near 78.
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)
1:26 pm CDT Mar 20, 2026
1pm CDT Mar 20, 2026-6pm CDT Mar 26, 2026



