Winona, MN Weather & Growing Conditions
Today
76°F
Isolated Rain Showers
Isolated rain showers. Mostly cloudy. High near 76, with temperatures falling to around 73 in the afternoon. West wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Isolated Rain Showers | 7 to 10 mph W | 22% |
| Tonight | 59°F | Scattered Rain Showers | 7 mph W | 28% |
| Wednesday | 76°F | Mostly Sunny | 5 mph NW | 1% |
| Wednesday Night | 56°F | Mostly Clear | 1 to 5 mph W | 0% |
| Thursday | 81°F | Sunny | 2 to 7 mph SW | 0% |
| Thursday Night | 61°F | Mostly Clear | 7 mph S | 1% |
| Friday | 83°F | Sunny | 6 to 12 mph SW | 8% |
| Friday Night | 65°F | Slight Chance Rain Showers | 10 mph SW | 18% |
| Saturday | 84°F | Slight Chance Rain Showers then Sunny | 9 mph SW | 18% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 9 mph SW | 40% |
| Sunday | 83°F | Chance Showers And Thunderstorms | 7 to 10 mph SW | 40% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 5 to 8 mph SE | 41% |
| Monday | 82°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 7 mph E | 41% |
| Monday Night | 66°F | Slight Chance Showers And Thunderstorms | 6 mph N | 27% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Winona, MN
Last spring frost
Apr 21
First fall frost
Oct 19
Growing season
180 days
Hardiness zone
5a
Explore more for Winona, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Winona, Mn (3.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.