Winona, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winona, a city in Shannon County, Missouri.
Tonight
49°F
Isolated Rain Showers then Mostly Cloudy
Isolated rain showers before 10pm. Mostly cloudy, with a low around 49. Wind chill values as low as 48. Southwest wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Winona
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Isolated Rain Showers then Mostly Cloudy | 5 mph SW | 21% |
| Wednesday | 63°F | Mostly Sunny | 7 mph W | 4% |
| Wednesday Night | 39°F | Mostly Clear | 3 mph W | 0% |
| Thursday | 70°F | Sunny | 3 mph W | 2% |
| Thursday Night | 41°F | Mostly Cloudy | 3 mph NW | 14% |
| Friday | 62°F | Partly Sunny | 5 mph N | 0% |
| Friday Night | 38°F | Partly Cloudy | 2 mph N | 0% |
| Saturday | 60°F | Partly Sunny | 2 mph N | 0% |
| Saturday Night | 34°F | Partly Cloudy | 1 mph NW | 2% |
| Sunday | 64°F | Sunny | 2 mph W | 6% |
| Sunday Night | 34°F | Mostly Clear | 2 mph W | 1% |
| Monday | 68°F | Sunny | 3 mph W | 1% |
| Monday Night | 37°F | Mostly Clear | 2 mph SW | 0% |
| Tuesday | 72°F | Sunny | 2 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Winona (37.004, -91.327). Updated through the day.
Growing snapshot for Winona
Last spring frost
Apr 22
First fall frost
Oct 18
Growing season
176 days
Hardiness zone
6b
More local growing data for Winona: nearby ZIP 65588 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Winona 3 Sw, Mo (5.1 mi from Winona). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.