Winona, MO Weather & Growing Conditions
Overnight
71°F
Clear
Clear. Low around 71, with temperatures rising to around 73 overnight. Southwest wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 71°F | Clear | 1 mph SW | 1% |
| Saturday | 101°F | Sunny | 3 mph SW | 1% |
| Saturday Night | 70°F | Mostly Clear | 2 mph SW | 0% |
| Sunday | 99°F | Mostly Sunny | 3 mph W | 4% |
| Sunday Night | 68°F | Mostly Cloudy then Chance Showers And Thunderstorms | 1 mph NW | 37% |
| Monday | 89°F | Showers And Thunderstorms | 2 mph N | 76% |
| Monday Night | 61°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 2 mph N | 76% |
| Tuesday | 79°F | Slight Chance Rain Showers then Partly Sunny | 3 mph N | 19% |
| Tuesday Night | 54°F | Partly Cloudy | 3 mph N | 4% |
| Wednesday | 79°F | Sunny | 2 mph N | 1% |
| Wednesday Night | 53°F | Mostly Clear | 1 mph N | 0% |
| Thursday | 81°F | Mostly Sunny | 2 mph N | 3% |
| Thursday Night | 55°F | Partly Cloudy | 1 mph NE | 4% |
| Friday | 81°F | Partly Sunny | 2 mph NE | 9% |
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.