Sault Ste. Marie, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sault Ste. Marie, a city in Chippewa County, Michigan.
This Afternoon
65°F
Showers And Thunderstorms Likely
Rain showers before 4pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 65. Southeast wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Sault Ste. Marie
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Showers And Thunderstorms Likely | 10 mph SE | 93% |
| Tonight | 49°F | Showers And Thunderstorms | 5 to 10 mph S | 97% |
| Thursday | 53°F | Rain Showers | 5 to 10 mph W | 96% |
| Thursday Night | 33°F | Rain And Snow Showers Likely | 10 to 15 mph N | 96% |
| Friday | 41°F | Rain And Snow Showers Likely | 10 mph N | 64% |
| Friday Night | 28°F | Slight Chance Rain And Snow Showers then Mostly Cloudy | 5 to 10 mph N | 22% |
| Saturday | 44°F | Sunny | 0 to 5 mph NW | 1% |
| Saturday Night | 31°F | Partly Cloudy | 0 to 5 mph W | 1% |
| Sunday | 49°F | Chance Rain Showers | 5 to 15 mph W | 30% |
| Sunday Night | 36°F | Chance Rain Showers then Mostly Cloudy | 5 to 15 mph NW | 30% |
| Monday | 51°F | Partly Sunny | 0 to 10 mph W | 4% |
| Monday Night | 40°F | Mostly Cloudy | 5 to 10 mph W | 3% |
| Tuesday | 50°F | Partly Sunny | 10 to 15 mph NW | 13% |
| Tuesday Night | 35°F | Mostly Cloudy | 0 to 10 mph NW | 13% |
Forecast source: National Weather Service (api.weather.gov) for Sault Ste. Marie (46.476, -84.371). Updated through the day.
Growing snapshot for Sault Ste. Marie
Last spring frost
May 9
First fall frost
Oct 11
Growing season
151 days
Hardiness zone
4b
More local growing data for Sault Ste. Marie: nearby ZIP 49783 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Sault Ste Marie Sanderson Fld, Mi (5.4 mi from Sault Ste. Marie). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.