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

Current Water Temperature

54.1°F

Measurement Time: Monday, July 6, 2026, 4:30 PM EDT

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

82°F
Sunny
Sunny
81°F
85.3°F
32%
W 4.9 mph
7 mph
86.2°F
55.3°F
0 in
0%
9 mi
1019 mbar
4.4

Five Day Weather Forecast

Sunny
Mon
H: 87°F
L: 57°F
Sunny
Tue
H: 83°F
L: 55°F
Light rain shower
Wed
H: 67°F
L: 63°F
Fog
Thu
H: 73°F
L: 52°F
Sunny
Fri
H: 76°F
L: 52°F

Air Quality

AQI: 1 - Good
PM2.5: 2.5 μg/m3
PM10: 2.7 μg/m3
Carbon Monoxide: 111 μg/m3
Nitrogen Dioxide: 0.7 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 94 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:42 PM
Sunset: 9:32 PM
Daylight: 15 hrs 40 mins
Moonrise: 12:19 AM
Moon Transit: 1:15 PM
Moonset: 12:49 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%

Best Times for Fishing or Hunting

Major Periods

12:45 AM - 3:15 PM
12:45 AM - 3:15 PM

Minor Periods

12:19 AM - 1:49 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, July 6, 2026

Weather Forecast

Sunny
86.5°F
57°F
71.7°F
54%
0 in
2%
0%
6 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 2.66 μg/m3
PM10: 2.79 μg/m3
Carbon Monoxide: 137.25 μg/m3
Nitrogen Dioxide: 3.1 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 68.75 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:42 PM
Sunset: 9:32 PM
Daylight: 15 hrs 40 mins
Moonrise: 12:19 AM
Moon Transit: 1:15 PM
Moonset: 12:49 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%

Best Times for Fishing or Hunting

Major Periods

12:45 AM - 3:15 PM
12:45 AM - 3:15 PM

Minor Periods

12:19 AM - 1:49 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tuesday, July 7, 2026

Weather Forecast

Sunny
82.7°F
55.2°F
68.2°F
64%
0 in
17%
0%
8.5 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 3.63 μg/m3
PM10: 3.8 μg/m3
Carbon Monoxide: 149.88 μg/m3
Nitrogen Dioxide: 4.3 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 72.83 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:42 PM
Sunset: 9:31 PM
Daylight: 15 hrs 39 mins
Moonrise: 12:35 AM
Moon Transit: 7:10 AM
Moonset: 2:02 PM
Moon Phase: Last Quarter
Moon Illumination: 37.3%

Best Times for Fishing or Hunting

Major Periods

6:40 AM - 9:10 AM
7:50 PM - 10:20 PM

Minor Periods

1:32 PM - 3:02 PM
12:05 AM - 1:35 AM

Action Rating: 2 out of 5

Wednesday, July 8, 2026

Weather Forecast

Light rain shower
66.6°F
62.9°F
65.1°F
97%
1.22 in
93%
0%
7.6 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 4.44 μg/m3
PM10: 4.75 μg/m3
Carbon Monoxide: 140.71 μg/m3
Nitrogen Dioxide: 3.67 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 76.29 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:42 PM
Sunset: 9:31 PM
Daylight: 15 hrs 38 mins
Moonrise: 12:54 AM
Moon Transit: 7:57 AM
Moonset: 3:19 PM
Moon Phase: Last Quarter
Moon Illumination: 26.8%

Best Times for Fishing or Hunting

Major Periods

7:27 AM - 9:57 AM
8:40 PM - 11:10 PM

Minor Periods

2:49 PM - 4:19 PM
12:24 AM - 1:54 AM

Action Rating: 2 out of 5

Thursday, July 9, 2026

Weather Forecast

Fog
72.7°F
52°F
64.7°F
86%
0.04 in
63%
0%
8.3 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 4.45 μg/m3
PM10: 4.65 μg/m3
Carbon Monoxide: 148.82 μg/m3
Nitrogen Dioxide: 2.83 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 93.58 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:42 PM
Sunset: 9:30 PM
Daylight: 15 hrs 36 mins
Moonrise: 1:16 AM
Moon Transit: 8:49 AM
Moonset: 4:41 PM
Moon Phase: Last Quarter
Moon Illumination: 17.4%

Best Times for Fishing or Hunting

Major Periods

8:19 AM - 10:49 AM
12:00 AM - 12:00 AM

Minor Periods

4:11 PM - 5:41 PM
12:46 AM - 2:16 AM

Action Rating: 3 out of 5

Friday, July 10, 2026

Weather Forecast

Sunny
75.7°F
52.2°F
63.9°F
72%
0 in
9%
0%
9.6 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 4.19 μg/m3
PM10: 4.29 μg/m3
Carbon Monoxide: 166.22 μg/m3
Nitrogen Dioxide: 1.67 μg/m3
Sulphur Dioxide: 0.51 μg/m3
Ozone: 63.33 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:42 PM
Sunset: 9:30 PM
Daylight: 15 hrs 35 mins
Moonrise: 1:45 AM
Moon Transit: 9:46 AM
Moonset: 6:04 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:16 AM - 11:46 AM

Minor Periods

5:34 PM - 7:04 PM
1:15 AM - 2:45 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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