Winona, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winona, a city in Winona County, Minnesota.
This Afternoon
63°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. High near 63, with temperatures falling to around 61 in the afternoon. East wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Winona
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Showers And Thunderstorms | 7 to 10 mph E | 80% |
| Tonight | 56°F | Showers And Thunderstorms | 8 to 13 mph E | 88% |
| Saturday | 65°F | Showers And Thunderstorms Likely | 7 mph E | 66% |
| Saturday Night | 54°F | Rain Showers Likely | 7 mph NE | 58% |
| Sunday | 66°F | Partly Sunny | 10 mph NE | 9% |
| Sunday Night | 49°F | Mostly Cloudy | 7 mph NE | 6% |
| Monday | 62°F | Mostly Cloudy then Chance Rain Showers | 6 to 9 mph NE | 28% |
| Monday Night | 45°F | Chance Rain Showers | 3 to 7 mph NE | 28% |
| Tuesday | 61°F | Partly Sunny | 3 to 7 mph E | 10% |
| Tuesday Night | 44°F | Partly Cloudy | 3 mph E | 4% |
| Wednesday | 65°F | Sunny | 1 to 5 mph E | 1% |
| Wednesday Night | 48°F | Partly Cloudy | 2 mph NE | 4% |
| Thursday | 68°F | Mostly Sunny | 0 to 3 mph S | 8% |
| Thursday Night | 50°F | Partly Cloudy | 1 mph N | 7% |
Forecast source: National Weather Service (api.weather.gov) for Winona (44.051, -91.668). Updated through the day.
Growing snapshot for Winona
Last spring frost
Apr 21
First fall frost
Oct 19
Growing season
180 days
Hardiness zone
5a
More local growing data for Winona: nearby ZIP 55987 weather · frost dates · planting calendar · Minnesota frost dates
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Minnesota City
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Utica
Climate data from the nearest NOAA station, Winona, Mn (3.4 mi from Winona). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.