West Alton, MO Weather & Growing Conditions
Overnight
74°F
Mostly Clear
Mostly clear, with a low around 74. Southeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 74°F | Mostly Clear | 5 mph SE | 4% |
| Saturday | 98°F | Partly Sunny | 3 to 9 mph SW | 5% |
| Saturday Night | 73°F | Partly Cloudy | 6 mph SW | 4% |
| Sunday | 93°F | Partly Sunny then Chance Showers And Thunderstorms | 3 to 8 mph NW | 36% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 to 12 mph NE | 66% |
| Monday | 79°F | Showers And Thunderstorms Likely | 8 to 13 mph NE | 66% |
| Monday Night | 59°F | Chance Showers And Thunderstorms | 7 to 14 mph NE | 45% |
| Tuesday | 72°F | Slight Chance Rain Showers then Partly Sunny | 10 to 14 mph NE | 19% |
| Tuesday Night | 54°F | Mostly Cloudy | 6 to 14 mph N | 6% |
| Wednesday | 75°F | Mostly Sunny | 8 to 12 mph N | 1% |
| Wednesday Night | 55°F | Partly Cloudy | 3 to 10 mph N | 0% |
| Thursday | 77°F | Mostly Sunny | 5 to 9 mph N | 1% |
| Thursday Night | 58°F | Partly Cloudy | 3 to 9 mph NE | 3% |
| Friday | 79°F | Partly Sunny | 3 to 8 mph NE | 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.