West Alton, MO Weather & Growing Conditions
Overnight
73°F
Partly Cloudy
Partly cloudy, with a low around 73. Southeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 73°F | Partly Cloudy | 6 mph SE | 10% |
| Saturday | 99°F | Mostly Sunny | 3 to 9 mph SW | 6% |
| Saturday Night | 73°F | Partly Cloudy | 6 mph SW | 4% |
| Sunday | 94°F | Chance Rain Showers then Chance Showers And Thunderstorms | 3 to 8 mph W | 27% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 to 9 mph N | 65% |
| Monday | 80°F | Showers And Thunderstorms Likely | 7 to 13 mph N | 70% |
| Monday Night | 60°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 7 to 13 mph N | 70% |
| Tuesday | 74°F | Slight Chance Rain Showers then Mostly Cloudy | 13 mph N | 23% |
| Tuesday Night | 54°F | Mostly Cloudy | 5 to 13 mph N | 5% |
| Wednesday | 76°F | Mostly Sunny | 7 to 10 mph N | 2% |
| Wednesday Night | 55°F | Partly Cloudy | 3 to 9 mph N | 1% |
| Thursday | 76°F | Mostly Sunny | 5 to 8 mph N | 3% |
| Thursday Night | 58°F | Partly Cloudy | 3 to 7 mph NE | 3% |
| Friday | 78°F | Mostly Sunny | 5 to 8 mph N | 6% |
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 Sep 19, 2026.