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

Current Water Temperature

41.5°F

Measurement Time: Sunday, January 18, 2026, 7:36 PM EST

Temperature Locations

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Local Points of Interest

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

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

15.1°F
Patchy light snow
Patchy light snow
11.8°F
10.8°F
87%
ESE 2.2 mph
4.1 mph
6.7°F
9.4°F
0 in
100%
1 mi
1006 mbar
0

Five Day Weather Forecast

Freezing fog
Sun
H: 13°F
L: -11°F
Heavy snow
Mon
H: 13°F
L: -10°F
Patchy moderate snow
Tue
H: -6°F
L: -21°F
Light snow
Wed
H: 10°F
L: -22°F
Freezing fog
Thu
H: 21°F
L: -3°F

Air Quality

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 8:15 AM
Sun Transit: 12:47 AM
Sunset: 5:21 PM
Daylight: 9 hrs 6 mins
Moonrise: 8:34 AM
Moon Transit: 12:46 AM
Moonset: 5:06 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:38 AM - 3:08 AM
12:16 AM - 2:46 PM

Minor Periods

4:36 PM - 6:06 PM
8:04 AM - 9:34 AM

Action Rating: 4 out of 5

Winter Weather Advisory issued January 18 at 4:04AM EST until January 20 at 7:00AM EST by NWS Gaylord MI

Effective: Sun January 18, 2026, 4:04 AM
Expires: Sun January 18, 2026, 4:15 PM

* WHAT...Snow expected. Total snow accumulations between 2 and 4 inches, with locally higher amounts possible near and around Whitefish Point. Considerable blowing and drifting snow possible Monday. * WHERE...Central Chippewa, Western Chippewa, and Western Mackinac Counties. * WHEN...From 4 AM Monday to 7 AM EST Tuesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Monday morning and evening commutes with periods of rapid drops in visibilities.

Slow down and use caution while traveling.


Winter Weather Advisory issued January 18 at 3:14PM EST until January 20 at 7:00AM EST by NWS Gaylord MI

Effective: Sun January 18, 2026, 3:14 PM
Expires: Mon January 19, 2026, 3:15 AM

...HIGH IMPACT WINTER WEATHER EVENT STARTS TONIGHT... .A period of lake enhanced and lake effect snow...along with considerable blowing and drifting snow...will start this evening and continue into Monday night. Strongest winds are expected to develop Monday morning. * WHAT...Snow expected. Total snow accumulations between 3 and 10 inches with the highest snow totals across western Chippewa county. * WHERE...Central Chippewa, Western Chippewa, and Western Mackinac Counties. * WHEN...From 4 AM Monday to 7 AM EST Tuesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning and evening commutes.

Slow down and use caution while traveling.
Sunday, January 18, 2026

Weather Forecast

Freezing fog
13.2°F
-11°F
4.7°F
95%
0.03 in
78%
58%
5.6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.59 μg/m3
PM10: 2.61 μg/m3
Carbon Monoxide: 199.31 μg/m3
Nitrogen Dioxide: 6.13 μg/m3
Sulphur Dioxide: 1.67 μg/m3
Ozone: 56.62 μg/m3

Astronomical

Sunrise: 8:15 AM
Sun Transit: 12:47 AM
Sunset: 5:21 PM
Daylight: 9 hrs 6 mins
Moonrise: 8:34 AM
Moon Transit: 12:46 AM
Moonset: 5:06 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:38 AM - 3:08 AM
12:16 AM - 2:46 PM

Minor Periods

4:36 PM - 6:06 PM
8:04 AM - 9:34 AM

Action Rating: 4 out of 5

Monday, January 19, 2026

Weather Forecast

Heavy snow
13.3°F
-9.9°F
6.3°F
92%
0.09 in
85%
62%
13.6 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 8:14 AM
Sun Transit: 12:48 AM
Sunset: 5:22 PM
Daylight: 9 hrs 8 mins
Moonrise: 9:02 AM
Moon Transit: 1:35 PM
Moonset: 6:19 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

1:28 AM - 3:58 AM
1:05 PM - 3:35 PM

Minor Periods

5:49 PM - 7:19 PM
8:32 AM - 10:02 AM

Action Rating: 5 out of 5

Tuesday, January 20, 2026

Weather Forecast

Patchy moderate snow
-5.6°F
-21.4°F
-13.4°F
92%
0.04 in
88%
40%
7.8 mph
1


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 8:13 AM
Sun Transit: 12:48 AM
Sunset: 5:24 PM
Daylight: 9 hrs 10 mins
Moonrise: 9:25 AM
Moon Transit: 2:23 PM
Moonset: 7:32 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

2:16 AM - 4:46 AM
1:53 PM - 4:23 PM

Minor Periods

7:02 PM - 8:32 PM
8:55 AM - 10:25 AM

Action Rating: 3 out of 5

Wednesday, January 21, 2026

Weather Forecast

Light snow
10.3°F
-21.6°F
-4°F
96%
0.02 in
64%
62%
5.6 mph
1


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 8:12 AM
Sun Transit: 12:48 AM
Sunset: 5:25 PM
Daylight: 9 hrs 13 mins
Moonrise: 9:44 AM
Moon Transit: 3:08 PM
Moonset: 8:45 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

3:02 AM - 5:32 AM
2:38 PM - 5:08 PM

Minor Periods

8:15 PM - 9:45 PM
9:14 AM - 10:44 AM

Action Rating: 3 out of 5

Thursday, January 22, 2026

Weather Forecast

Freezing fog
20.6°F
-3.3°F
11°F
95%
0.02 in
86%
56%
11.4 mph
1


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 8:12 AM
Sun Transit: 12:48 AM
Sunset: 5:27 PM
Daylight: 9 hrs 15 mins
Moonrise: 10:01 AM
Moon Transit: 3:52 PM
Moonset: 9:58 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

3:47 AM - 6:17 AM
3:22 PM - 5:52 PM

Minor Periods

9:28 PM - 10:58 PM
9:31 AM - 11:01 AM

Action Rating: 3 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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