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

Current Water Temperature

43.0°F

Measurement Time: Saturday, January 24, 2026, 12:18 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

-6°F
Overcast
Overcast
-12.9°F
-10.6°F
86%
S 2.7 mph
3.3 mph
-20.6°F
-15.8°F
0 in
100%
6 mi
1037 mbar
1.4

Five Day Weather Forecast

Light freezing rain
Sat
H: 7°F
L: -22°F
Cloudy
Sun
H: 14°F
L: -14°F
Overcast
Mon
H: 18°F
L: -0°F
Overcast
Tue
H: 21°F
L: -6°F
Moderate snow
Wed
H: 17°F
L: -3°F

Air Quality

AQI: 1 - Good
PM2.5: 1.35 μg/m3
PM10: 1.35 μg/m3
Carbon Monoxide: 180.85 μg/m3
Nitrogen Dioxide: 3.35 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 8:10 AM
Sun Transit: 12:49 AM
Sunset: 5:29 PM
Daylight: 9 hrs 20 mins
Moonrise: 10:35 AM
Moon Transit: 5:23 PM
Moonset: 12:13 AM
Moon Phase: First Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:53 PM - 7:23 PM

Minor Periods

10:05 AM - 11:35 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Extreme Cold Warning issued January 23 at 9:31PM EST until January 24 at 1:00PM EST by NWS Gaylord MI

Effective: Fri January 23, 2026, 9:31 PM
Expires: Sat January 24, 2026, 9:45 AM

* WHAT...Dangerously cold air temperatures of 15 to 30 below zero possible, with wind chills as low as 35 to 40 below zero possible. * WHERE...Central Chippewa, Eastern Mackinac, Southeast Chippewa, Western Chippewa, and Western Mackinac Counties, and Mackinac Island/Bois Blanc Island. * WHEN...Until 1 PM EST Saturday. * IMPACTS...The dangerously cold wind air temperatures amd wind chills could cause frostbite on exposed skin in as little as 10 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water.


Extreme Cold Warning issued January 24 at 2:03AM EST until January 24 at 1:00PM EST by NWS Gaylord MI

Effective: Sat January 24, 2026, 2:03 AM
Expires: Sat January 24, 2026, 11:00 AM

* WHAT...Dangerously cold air temperatures of 15 to 30 below zero possible, with wind chills as low as 35 to 40 below zero possible. * WHERE...Central Chippewa, Eastern Mackinac, Southeast Chippewa, Western Chippewa, and Western Mackinac Counties, and Mackinac Island/Bois Blanc Island. * WHEN...Until 1 PM EST this afternoon. * IMPACTS...The dangerously cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water.


Saturday, January 24, 2026

Weather Forecast

Light freezing rain
6.6°F
-21.8°F
-8.9°F
66%
0.02 in
84%
38%
5.1 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.77 μg/m3
PM10: 1.83 μg/m3
Carbon Monoxide: 204.25 μg/m3
Nitrogen Dioxide: 2.93 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 65.2 μg/m3

Astronomical

Sunrise: 8:10 AM
Sun Transit: 12:49 AM
Sunset: 5:29 PM
Daylight: 9 hrs 20 mins
Moonrise: 10:35 AM
Moon Transit: 5:23 PM
Moonset: 12:13 AM
Moon Phase: First Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:53 PM - 7:23 PM

Minor Periods

10:05 AM - 11:35 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, January 25, 2026

Weather Forecast

Cloudy
13.8°F
-14.1°F
5°F
78%
0 in
0%
0%
5.1 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.31 μg/m3
PM10: 3.36 μg/m3
Carbon Monoxide: 211.17 μg/m3
Nitrogen Dioxide: 6.37 μg/m3
Sulphur Dioxide: 2.16 μg/m3
Ozone: 64.96 μg/m3

Astronomical

Sunrise: 8:09 AM
Sun Transit: 12:49 AM
Sunset: 5:31 PM
Daylight: 9 hrs 22 mins
Moonrise: 10:55 AM
Moon Transit: 6:13 PM
Moonset: 12:30 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

6:05 AM - 8:35 AM
5:43 PM - 8:13 PM

Minor Periods

10:25 AM - 11:55 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Monday, January 26, 2026

Weather Forecast

Overcast
18.1°F
-0.4°F
9.2°F
85%
0 in
0%
0%
13.2 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.15 μg/m3
PM10: 3.21 μg/m3
Carbon Monoxide: 184.25 μg/m3
Nitrogen Dioxide: 4.31 μg/m3
Sulphur Dioxide: 1.77 μg/m3
Ozone: 68.64 μg/m3

Astronomical

Sunrise: 8:08 AM
Sun Transit: 12:49 AM
Sunset: 5:32 PM
Daylight: 9 hrs 25 mins
Moonrise: 11:19 AM
Moon Transit: 7:06 PM
Moonset: 1:49 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%

Best Times for Fishing or Hunting

Major Periods

6:56 AM - 9:26 AM
6:36 PM - 9:06 PM

Minor Periods

10:49 AM - 12:19 AM
1:19 AM - 2:49 AM

Action Rating: 2 out of 5

Tuesday, January 27, 2026

Weather Forecast

Overcast
20.7°F
-5.9°F
8.3°F
86%
0 in
0%
7%
9.4 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 4.77 μg/m3
PM10: 4.89 μg/m3
Carbon Monoxide: 188.82 μg/m3
Nitrogen Dioxide: 4.23 μg/m3
Sulphur Dioxide: 1.5 μg/m3
Ozone: 67.84 μg/m3

Astronomical

Sunrise: 8:07 AM
Sun Transit: 12:50 AM
Sunset: 5:34 PM
Daylight: 9 hrs 27 mins
Moonrise: 11:51 AM
Moon Transit: 8:05 PM
Moonset: 3:11 AM
Moon Phase: First Quarter
Moon Illumination: 68.0%

Best Times for Fishing or Hunting

Major Periods

7:52 AM - 10:22 AM
7:35 PM - 10:05 PM

Minor Periods

11:21 AM - 12:51 AM
2:41 AM - 4:11 AM

Action Rating: 3 out of 5

Wednesday, January 28, 2026

Weather Forecast

Moderate snow
16.7°F
-3°F
6.4°F
95%
0.06 in
66%
72%
7.4 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 3.53 μg/m3
PM10: 3.58 μg/m3
Carbon Monoxide: 181.23 μg/m3
Nitrogen Dioxide: 3.63 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 66.69 μg/m3

Astronomical

Sunrise: 8:05 AM
Sun Transit: 12:50 AM
Sunset: 5:35 PM
Daylight: 9 hrs 30 mins
Moonrise: 12:35 AM
Moon Transit: 9:07 PM
Moonset: 4:33 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.1%

Best Times for Fishing or Hunting

Major Periods

8:53 AM - 11:23 AM
8:37 PM - 11:07 PM

Minor Periods

12:05 AM - 1:35 PM
4:03 AM - 5:33 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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