West Alton, MO Weather & Growing Conditions
Tonight
53°F
Rain
Rain and a slight chance of thunderstorms before 4am, then a chance of rain showers. Cloudy, with a low around 53. South wind 9 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 90%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Rain | 9 to 16 mph S | 92% |
| Wednesday | 64°F | Chance Rain Showers then Mostly Cloudy | 9 to 15 mph W | 12% |
| Wednesday Night | 43°F | Partly Cloudy | 5 to 8 mph SW | 0% |
| Thursday | 66°F | Sunny | 6 to 13 mph W | 2% |
| Thursday Night | 43°F | Mostly Cloudy | 3 to 7 mph NW | 9% |
| Friday | 59°F | Mostly Cloudy | 6 to 12 mph NW | 5% |
| Friday Night | 38°F | Partly Cloudy | 2 to 8 mph N | 1% |
| Saturday | 57°F | Mostly Sunny | 5 mph NW | 0% |
| Saturday Night | 36°F | Partly Cloudy | 2 mph W | 0% |
| Sunday | 63°F | Sunny | 2 to 8 mph W | 8% |
| Sunday Night | 36°F | Mostly Clear | 2 to 6 mph W | 4% |
| Monday | 67°F | Sunny | 2 to 8 mph SW | 2% |
| Monday Night | 41°F | Mostly Clear | 5 mph SW | 1% |
| Tuesday | 69°F | Sunny | 3 to 7 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for West Alton, MO
Last spring frost
Apr 4
First fall frost
Nov 5
Growing season
214 days
Hardiness zone
7a
Explore more for West Alton, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Alton - Melvin Price L&D, Il (3.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.