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
Mostly Sunny
Mostly sunny. High near 65, with temperatures falling to around 63 in the afternoon. Southeast wind around 10 mph.
7-day forecast for Sault Ste. Marie
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Mostly Sunny | 10 mph SE | 3% |
| Tonight | 45°F | Mostly Cloudy | 0 to 5 mph E | 4% |
| Sunday | 66°F | Mostly Sunny | 5 to 10 mph N | 4% |
| Sunday Night | 40°F | Partly Cloudy | 5 to 10 mph NE | 0% |
| Monday | 60°F | Partly Sunny | 5 mph E | 0% |
| Monday Night | 40°F | Partly Cloudy | 5 mph NE | 0% |
| Tuesday | 64°F | Sunny | 5 mph E | 0% |
| Tuesday Night | 44°F | Mostly Clear | 5 mph E | 0% |
| Wednesday | 65°F | Sunny | 5 to 10 mph E | 3% |
| Wednesday Night | 46°F | Mostly Clear | 5 to 10 mph E | 4% |
| Thursday | 66°F | Mostly Sunny | 5 to 10 mph E | 3% |
| Thursday Night | 47°F | Partly Cloudy | 0 to 10 mph E | 3% |
| Friday | 70°F | Mostly Sunny | 0 to 5 mph NE | 2% |
| Friday Night | 47°F | Partly Cloudy | 0 to 5 mph NW | 1% |
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 Sep 19, 2026.