Winn, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winn, a community in Isabella County, Michigan.
Today
86°F
Sunny
Sunny, with a high near 86. Southwest wind 2 to 10 mph, with gusts as high as 21 mph.
7-day forecast for Winn
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 2 to 10 mph SW | 1% |
| Tonight | 62°F | Partly Cloudy | 3 to 9 mph SW | 2% |
| Wednesday | 82°F | Showers And Thunderstorms Likely | 5 to 10 mph SW | 68% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 2 to 8 mph W | 78% |
| Thursday | 80°F | Rain Showers | 5 mph NW | 78% |
| Thursday Night | 58°F | Chance Rain Showers then Partly Cloudy | 0 to 3 mph SSW | 46% |
| Friday | 84°F | Mostly Sunny | 0 to 6 mph SW | 8% |
| Friday Night | 60°F | Mostly Clear | 2 to 6 mph WSW | 8% |
| Saturday | 87°F | Sunny | 3 to 13 mph WSW | 5% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 5 to 13 mph SW | 33% |
| Sunday | 87°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 7 to 16 mph SW | 33% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 5 to 14 mph WSW | 52% |
| Monday | 85°F | Chance Rain Showers | 5 to 10 mph WSW | 52% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 3 to 10 mph WNW | 47% |
Forecast source: National Weather Service (api.weather.gov) for Winn (43.519, -84.901). Updated through the day.
Growing snapshot for Winn
Last spring frost
Apr 30
First fall frost
Oct 20
Growing season
171 days
Hardiness zone
5b
More local growing data for Winn: nearby ZIP 48896 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Central Michigan Univ, Mi (8 mi from Winn). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.