Harman US

Winona, MO Weather & Growing Conditions

Tonight
71°F
Mostly Clear
Mostly clear, with a low around 71. Southwest wind around 1 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 71°F Mostly Clear 1 mph SW 3%
Saturday 100°F Sunny 3 mph SW 1%
Saturday Night 71°F Mostly Clear 2 mph SW 0%
Sunday 99°F Sunny 3 mph SW 2%
Sunday Night 69°F Mostly Cloudy then Chance Showers And Thunderstorms 1 mph NW 33%
Monday 91°F Showers And Thunderstorms Likely 2 mph N 61%
Monday Night 62°F Showers And Thunderstorms Likely 2 mph N 61%
Tuesday 81°F Slight Chance Rain Showers then Partly Sunny 3 mph N 15%
Tuesday Night 55°F Partly Cloudy 3 mph N 7%
Wednesday 81°F Mostly Sunny 2 mph N 2%
Wednesday Night 54°F Mostly Clear 2 mph N 1%
Thursday 82°F Sunny 2 mph N 4%
Thursday Night 56°F Partly Cloudy 1 mph NE 4%
Friday 81°F Mostly Sunny 2 mph N 7%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Winona, MO

Last spring frost
Apr 22
First fall frost
Oct 18
Growing season
176 days
Hardiness zone
6b

Explore more for Winona, MO: full frost dates · planting calendar · Missouri frost dates

Climate data from the nearest NOAA station, Winona 3 Sw, Mo (5.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.