Gwinn, MI Weather & Growing Conditions
Tonight
43°F
Mostly Cloudy
Mostly cloudy, with a low around 43. East wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 43°F | Mostly Cloudy | 0 to 5 mph E | 7% |
| Saturday | 65°F | Partly Sunny | 0 to 5 mph SE | 11% |
| Saturday Night | 46°F | Mostly Cloudy | 0 to 5 mph E | 8% |
| Sunday | 61°F | Partly Sunny | 5 to 15 mph N | 2% |
| Sunday Night | 39°F | Mostly Cloudy | 5 to 15 mph NE | 0% |
| Monday | 59°F | Partly Sunny | 5 to 10 mph NE | 0% |
| Monday Night | 36°F | Partly Cloudy | 0 to 10 mph NE | 0% |
| Tuesday | 63°F | Patchy Frost then Mostly Sunny | 0 to 10 mph NE | 0% |
| Tuesday Night | 39°F | Mostly Clear | 0 to 10 mph E | 3% |
| Wednesday | 66°F | Sunny | 0 to 10 mph E | 4% |
| Wednesday Night | 43°F | Partly Cloudy | 0 to 5 mph SE | 4% |
| Thursday | 69°F | Mostly Sunny | 0 to 5 mph NE | 2% |
| Thursday Night | 44°F | Partly Cloudy | 0 to 5 mph SW | 4% |
| Friday | 72°F | Mostly Sunny | 0 to 5 mph NW | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Gwinn, MI
Last spring frost
May 13
First fall frost
Oct 2
Growing season
141 days
Hardiness zone
5a
Explore more for Gwinn, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Ki Sawyer Wwtp, Mi (7.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.