Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
28°F
-2°C
| Humidity | 64% |
| Wind Speed | NA |
| Barometer | 30.15 in |
| Dewpoint | 18°F (-8°C) |
| Visibility | 10.00 mi |
| Last update | 9 Feb 8:50 am CST |
Extended Forecast for
West Alton MO
Today
High: 54 °F
Sunny
Tonight
Low: 42 °F
Mostly Clear
Tuesday
High: 59 °F
Sunny
Tuesday Night
Low: 30 °F
Partly Cloudy
Wednesday
High: 50 °F
Mostly Sunny
Wednesday Night
Low: 31 °F
Mostly Cloudy
Thursday
High: 45 °F
Mostly Cloudy
then Slight
Chance RainThursday Night
Low: 32 °F
Chance Rain
Friday
High: 45 °F
Slight Chance
Rain
Detailed Forecast
Today
Sunny, with a high near 54. South wind 3 to 6 mph.
Tonight
Mostly clear, with a low around 42. Southeast wind around 7 mph becoming west after midnight.
Tuesday
Sunny, with a high near 59. West wind 6 to 10 mph becoming north in the morning.
Tuesday Night
Partly cloudy, with a low around 30. North wind around 6 mph.
Wednesday
Mostly sunny, with a high near 50. North wind around 6 mph.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 45.
Thursday Night
A 40 percent chance of rain. Cloudy, with a low around 32.
Friday
A 20 percent chance of rain. Mostly cloudy, with a high near 45.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 31.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 46.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 32.
Sunday
A 20 percent chance of rain. Sunny, with a high near 48.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
West Alton MO
38.86°N 90.22°W (Elev. 427 ft)
38.86°N 90.22°W (Elev. 427 ft)
8:27 am CST Feb 9, 2026
9am CST Feb 9, 2026-6pm CST Feb 15, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
