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

Current Water Temperature

Current temperature data is
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Temperature Locations

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Local Points of Interest

Ashmun Bay; Whitefish Island; St. Mary's Island; Soo Locks; Sault Sainte Marie

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St. Marys River

Station Name: S.W. Pier, St. Marys River
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 597 feet / 182 meters

Sensor Depth: -3.8 feet / -1.2 meters

Nearest Address:
Point West Dr
Sault Ste. Marie, MI 49783
Chippewa County

GPS Coordinates: 46.501111, -84.372611

Nearby Water Temperatures

St. Marys River, Sault Ste. Marie, MI (3.5 mi)
St. Marys River, Barbeau, MI (16.8 mi)
St. Marys River, Barbeau, MI (18.5 mi)
Lake Huron, De Tour Village, MI (41.8 mi)
Straits of Mackinac, Mackinaw City, MI (50.5 mi)
Lake Huron, Bois Blanc Island, MI (51.6 mi)
Seul Choix Bay, Port Inland, MI (80.5 mi)
Little Traverse Bay, Petoskey, MI (83.1 mi)
Miners River, Munising, MI (103.1 mi)
Lake Huron, Alpena, MI (108.3 mi)
Thunder Bay River, Alpena, MI (109.3 mi)
Lake Huron, Alpena, MI (117.3 mi)
North Branch Au Sable River, Grayling, MI (123.3 mi)
Au Sable River, Luzerne, MI (126.1 mi)
Lake Michigan, Leland, MI (126.3 mi)

Weather for Sault Ste. Marie, Michigan

Current Weather

23°F
Patchy light snow
Conditions: Patchy light snow
Humidity: 92%
Feels Like: 11.4°F
Wind: SE 12.1 mph
Wind Gusts: 17.3 mph
Pressure: 29.58 in
Precipitation: 0.01 in
Cloud Cover: 100%
Visibility: 0 mi
UV Index: 0.2

Five Day Weather Forecast

Light freezing rain
Sat
H: 30°F
L: -1°F
Moderate snow
Sun
H: 20°F
L: 16°F
Light freezing rain
Mon
H: 31°F
L: 15°F
Light snow
Tue
H: 33°F
L: 27°F
Freezing fog
Wed
H: 30°F
L: 3°F

Air Quality

AQI: 1 - Good
PM2.5: 4.35 μg/m3
PM10: 4.65 μg/m3
Carbon Monoxide: 179.85 μg/m3
Nitrogen Dioxide: 7.25 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 62 μg/m3

Astronomical

Sunrise: 8:18 AM
Sun Transit: 12:35 AM
Sunset: 4:53 PM
Daylight: 8 hrs 34 mins
Moonrise: 9:18 AM
Moon Transit: 1:09 PM
Moonset: 5:03 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:59 AM - 3:29 AM
12:39 AM - 3:09 PM

Minor Periods

4:33 PM - 6:03 PM
8:48 AM - 10:18 AM

Action Rating: 4 out of 5

Winter Weather Advisory issued December 20 at 2:49AM EST until December 21 at 7:00AM EST by NWS Gaylord MI

Effective: Sat December 20, 2025, 7:49 AM
Expires: Sun December 21, 2025, 12:00 AM

* WHAT...Lake effect snow expected. Total snow accumulations between 3 and 6 inches. Winds gusting as high as 35 mph leading to blowing snow. * WHERE...Western Chippewa County. * WHEN...From 7 PM this evening to 7 AM EST Sunday. * IMPACTS...Plan on slippery road conditions. Gusty winds could bring down tree branches. Combination of gusty winds and falling snow will lead to blowing snow and very poor visibility at times.

Slow down and use caution while traveling. During lake effect snow, the weather can vary from bands of locally heavy snow to dry weather just a few miles away. Visibilities can also vary greatly. Be prepared for rapid changes in weather, visibility, and road conditions.
Saturday, December 20, 2025

Weather Forecast

Conditions: Light freezing rain
Average Temperature: 18.6°F
Average Humidity: 80%
Chance of Rain: 78%
Wind: 21.3 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 2.68 μg/m3
PM10: 2.96 μg/m3
Carbon Monoxide: 166.69 μg/m3
Nitrogen Dioxide: 4.14 μg/m3
Sulphur Dioxide: 1.68 μg/m3
Ozone: 71.16 μg/m3

Astronomical

Sunrise: 8:18 AM
Sun Transit: 12:35 AM
Sunset: 4:53 PM
Daylight: 8 hrs 34 mins
Moonrise: 9:18 AM
Moon Transit: 1:09 PM
Moonset: 5:03 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:59 AM - 3:29 AM
12:39 AM - 3:09 PM

Minor Periods

4:33 PM - 6:03 PM
8:48 AM - 10:18 AM

Action Rating: 4 out of 5

Sunday, December 21, 2025

Weather Forecast

Conditions: Moderate snow
Average Temperature: 18.9°F
Average Humidity: 84%
Chance of Rain: 61%
Wind: 19.7 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 1.67 μg/m3
PM10: 1.76 μg/m3
Carbon Monoxide: 170.93 μg/m3
Nitrogen Dioxide: 3 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 75.56 μg/m3

Astronomical

Sunrise: 8:19 AM
Sun Transit: 12:35 AM
Sunset: 4:53 PM
Daylight: 8 hrs 34 mins
Moonrise: 10:00 AM
Moon Transit: 2:01 PM
Moonset: 6:08 PM
Moon Phase: New
Moon Illumination: 1.5%

Best Times for Fishing or Hunting

Major Periods

1:52 AM - 4:22 AM
1:31 PM - 4:01 PM

Minor Periods

5:38 PM - 7:08 PM
9:30 AM - 11:00 AM

Action Rating: 3 out of 5

Monday, December 22, 2025

Weather Forecast

Conditions: Light freezing rain
Average Temperature: 24.9°F
Average Humidity: 90%
Chance of Rain: 65%
Wind: 10.3 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 6.1 μg/m3
PM10: 6.76 μg/m3
Carbon Monoxide: 183.13 μg/m3
Nitrogen Dioxide: 6.77 μg/m3
Sulphur Dioxide: 1.97 μg/m3
Ozone: 71.48 μg/m3

Astronomical

Sunrise: 8:19 AM
Sun Transit: 12:36 AM
Sunset: 4:54 PM
Daylight: 8 hrs 34 mins
Moonrise: 10:33 AM
Moon Transit: 2:51 PM
Moonset: 7:18 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.5%

Best Times for Fishing or Hunting

Major Periods

2:43 AM - 5:13 AM
2:21 PM - 4:51 PM

Minor Periods

6:48 PM - 8:18 PM
10:03 AM - 11:33 AM

Action Rating: 3 out of 5

Tuesday, December 23, 2025

Weather Forecast

Conditions: Light snow
Average Temperature: 29.8°F
Average Humidity: 96%
Chance of Rain: 74%
Wind: 12.3 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 7.15 μg/m3
PM10: 7.79 μg/m3
Carbon Monoxide: 189.28 μg/m3
Nitrogen Dioxide: 8.24 μg/m3
Sulphur Dioxide: 2.89 μg/m3
Ozone: 55.48 μg/m3

Astronomical

Sunrise: 8:20 AM
Sun Transit: 12:36 AM
Sunset: 4:54 PM
Daylight: 8 hrs 35 mins
Moonrise: 10:58 AM
Moon Transit: 3:39 PM
Moonset: 8:30 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.7%

Best Times for Fishing or Hunting

Major Periods

3:32 AM - 6:02 AM
3:09 PM - 5:39 PM

Minor Periods

8:00 PM - 9:30 PM
10:28 AM - 11:58 AM

Action Rating: 2 out of 5

Wednesday, December 24, 2025

Weather Forecast

Conditions: Freezing fog
Average Temperature: 19.1°F
Average Humidity: 94%
Chance of Rain: 63%
Wind: 10.3 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 1.35 μg/m3
PM10: 1.37 μg/m3
Carbon Monoxide: 180.64 μg/m3
Nitrogen Dioxide: 2.7 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 64.38 μg/m3

Astronomical

Sunrise: 8:20 AM
Sun Transit: 12:37 AM
Sunset: 4:55 PM
Daylight: 8 hrs 35 mins
Moonrise: 11:19 AM
Moon Transit: 4:25 PM
Moonset: 9:42 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.9%

Best Times for Fishing or Hunting

Major Periods

4:18 AM - 6:48 AM
3:55 PM - 6:25 PM

Minor Periods

9:12 PM - 10:42 PM
10:49 AM - 12:19 AM

Action Rating: 2 out of 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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