Harman US

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

WhenTempForecastWindPrecip
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.