Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
54°F
12°C
| Humidity | 78% |
| Wind Speed | Calm |
| Barometer | 29.95 in |
| Dewpoint | 47°F (8°C) |
| Visibility | 10.00 mi |
| Last update | 7 Oct 5:55 am CDT |
Extended Forecast for
West Alton MO
Today

High: 89 °F
Sunny
Tonight

Low: 53 °F
Mostly Clear
Thursday

High: 84 °F
Sunny
Thursday Night

Low: 55 °F
Mostly Clear
Friday

High: 89 °F
Sunny
Friday Night

Low: 61 °F
Clear
Saturday

High: 88 °F
Sunny
Saturday Night
Low: 60 °F
Partly Cloudy
then Slight
Chance
ShowersSunday

High: 82 °F
Chance
Showers
Detailed Forecast
Today
Sunny, with a high near 89. Light and variable wind becoming west 6 to 11 mph in the morning.
Tonight
Mostly clear, with a low around 53. Northwest wind around 6 mph becoming calm after midnight.
Thursday
Sunny, with a high near 84. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 55. Northeast wind around 5 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 89. South wind 5 to 10 mph.
Friday Night
Clear, with a low around 61.
Saturday
Sunny, with a high near 88.
Saturday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 60.
Sunday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 59.
Columbus Day
Mostly sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 61.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 83.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
West Alton MO
38.84°N 90.22°W (Elev. 407 ft)
38.84°N 90.22°W (Elev. 407 ft)
4:46 am CDT Oct 7, 2026
6am CDT Oct 7, 2026-6pm CDT Oct 13, 2026


