Winona, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winona, a city in Winona County, Minnesota.
Tonight
54°F
Rain Showers
Rain showers. Cloudy. Low around 54, with temperatures rising to around 57 overnight. Southeast wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Winona
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Rain Showers | 5 to 9 mph SE | 95% |
| Wednesday | 56°F | Rain Showers | 7 to 12 mph S | 88% |
| Wednesday Night | 45°F | Rain Showers | 13 mph W | 88% |
| Thursday | 50°F | Rain Showers Likely | 12 mph NW | 74% |
| Thursday Night | 37°F | Mostly Cloudy | 7 to 10 mph N | 9% |
| Friday | 47°F | Partly Sunny | 2 to 7 mph N | 1% |
| Friday Night | 31°F | Partly Cloudy | 0 mph | 1% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph W | 0% |
| Saturday Night | 35°F | Partly Cloudy | 3 mph W | 10% |
| Sunday | 57°F | Mostly Sunny | 3 to 7 mph W | 13% |
| Sunday Night | 37°F | Mostly Clear | 3 mph SW | 4% |
| Monday | 60°F | Mostly Sunny | 3 to 9 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 6 mph W | 1% |
| Tuesday | 57°F | Sunny | 3 to 7 mph W | 1% |
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
Nearby towns & communities
Altura
Elba
Goodview
Homer
Lewiston
Minneiska
Minnesota City
Pickwick
Rollingstone
St. Charles
Stockton
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 Nov 4, 2026.