Water Temperature of the St. Marys River in Sault Ste. Marie, MI

Current Water Temperature

54.3°F 12.4°C
Cold Thermal Gear Required
54.3°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Cold shock risk with rapid dexterity loss (10–15 mins). Wetsuit or drysuit strongly advised for any immersion.

Measurement Time: Thursday, November 5, 2026, 4:12 PM EST

Temperature Locations

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Local Points of Interest

Rotary Park; Rotary Island; Steers Island; Island Number One; Sault Sainte Marie

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St. Marys River

Station Name: Little Rapids
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 568 feet

Sensor Depth: -8 feet

Nearest Address:
1425 Riverside Dr
Sault Ste. Marie, MI 49783
Chippewa County

GPS Coordinates: 46.485832, -84.301666

Nearby Water Temperatures

St. Marys River, Sault Ste. Marie, MI (3.5 mi)
St. Marys River, Barbeau, MI (14.5 mi)
St. Marys River, Barbeau, MI (16.2 mi)
Lake Huron, De Tour Village, MI (39.2 mi)
Lake Huron, Bois Blanc Island, MI (49.9 mi)
Straits of Mackinac, Mackinaw City, MI (50.9 mi)
Seul Choix Bay, Port Inland, MI (83.1 mi)
Little Traverse Bay, Petoskey, MI (83.7 mi)
Lake Huron, Alpena, MI (105.3 mi)
Miners River, Munising, MI (106.5 mi)
Thunder Bay River, Alpena, MI (106.9 mi)
Lake Huron, Alpena, MI (114.8 mi)
North Branch Au Sable River, Grayling, MI (122.4 mi)
Au Sable River, Luzerne, MI (125 mi)
Au Sable River, Mio, MI (126.4 mi)

Weather for Sault Ste. Marie, Michigan

Current Weather

43.9°F
Light drizzle
Conditions: Light drizzle
Humidity: 91%
Feels Like: 36.5°F
Wind: N 16.1 mph
Wind Gusts: 32.1 mph
Pressure: 29.62 in
Precipitation: 0.02 in
Cloud Cover: 100%
Visibility: 1 mi
UV Index: 0

Weather Forecast

Light drizzle
Thu
H: 54°F
L: 37°F
Heavy snow
Fri
H: 39°F
L: 34°F
Sunny
Sat
H: 45°F
L: 34°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
0.6 μg/m³
Good
PM10
0.6 μg/m³
Good
Ozone (O3)
47 μg/m³
Photochemical
NO2
4.3 μg/m³
Nitrogen Dioxide
SO2
0.6 μg/m³
Sulfur Dioxide
CO
197 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 51m daylight
Sunrise 7:25 AM
Solar Noon 12:20 PM
Sunset 5:16 PM
Moon
Waning Crescent • 11%
Moonrise 3:27 AM
Transit 9:33 AM
Moonset 3:26 PM

Best Times for Fishing or Hunting

Major Periods

9:03 AM - 11:33 AM
9:25 PM - 11:55 PM

Minor Periods

2:57 AM - 4:27 AM
2:56 PM - 4:26 PM
Action Rating:
Fair Action 2/5

Small Craft Advisory issued November 5 at 1:07PM EST until November 6 at 4:00AM EST by NWS Gaylord MI

Effective: Thu November 5, 2026, 1:07 PM
Expires: Thu November 5, 2026, 9:15 PM

* WHAT...Highest gusts up to 25 kts from the north and highest waves around 3 feet expected. * WHERE...St. Marys River Point Iroquois to E. Potagannissing Bay. * WHEN...Until 4 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft.


Small Craft Advisory issued November 5 at 1:07PM EST until November 6 at 11:00AM EST by NWS Gaylord MI

Effective: Thu November 5, 2026, 1:07 PM
Expires: Thu November 5, 2026, 9:15 PM

* WHAT...Highest gusts up to 30 kts from the north and highest waves around 8 feet. * WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point Iroquois MI. * WHEN...Until 11 AM EST Friday. * IMPACTS...Conditions will be hazardous to small craft.
Thursday, November 5, 2026

Weather Forecast

Conditions: Light drizzle
Average Temperature: 47.6°F
Average Humidity: 90%
Chance of Rain: 91%
Wind: 16.1 mph
UV Index: 0.2

Astronomical

Sun
9h 51m daylight
Sunrise 7:25 AM
Solar Noon 12:20 PM
Sunset 5:16 PM
Moon
Waning Crescent • 11%
Moonrise 3:27 AM
Transit 9:33 AM
Moonset 3:26 PM

Best Times for Fishing or Hunting

Major Periods

9:03 AM - 11:33 AM
9:25 PM - 11:55 PM

Minor Periods

2:57 AM - 4:27 AM
2:56 PM - 4:26 PM
Action Rating:
Fair Action 2/5
Friday, November 6, 2026

Weather Forecast

Conditions: Heavy snow
Average Temperature: 36.2°F
Average Humidity: 87%
Chance of Rain: 89%
Wind: 11.2 mph
UV Index: 0.9

Astronomical

Sun
9h 49m daylight
Sunrise 7:26 AM
Solar Noon 12:20 PM
Sunset 5:15 PM
Moon
Waning Crescent • 5%
Moonrise 4:39 AM
Transit 10:16 AM
Moonset 3:43 PM

Best Times for Fishing or Hunting

Major Periods

9:46 AM - 12:16 PM
10:09 PM - 12:39 AM

Minor Periods

4:09 AM - 5:39 AM
3:13 PM - 4:43 PM
Action Rating:
Fair Action 2/5
Saturday, November 7, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 38.7°F
Average Humidity: 81%
Chance of Rain: 14%
Wind: 7.4 mph
UV Index: 1.8

Astronomical

Sun
9h 46m daylight
Sunrise 7:27 AM
Solar Noon 12:20 PM
Sunset 5:13 PM
Moon
Waning Crescent • 1%
Moonrise 5:50 AM
Transit 11:01 AM
Moonset 4:03 PM

Best Times for Fishing or Hunting

Major Periods

10:31 AM - 1:01 PM
10:54 PM - 1:24 AM

Minor Periods

5:20 AM - 6:50 AM
3:33 PM - 5:03 PM
Action Rating:
Good Action 3/5
The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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