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

Current Water Temperature

Current temperature data is
not available at this time.

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

64°F
Mist
Mist
64°F
67.1°F
73%
NW 8.5 mph
17.9 mph
67.1°F
56.3°F
0 in
100%
1 mi
1017 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 81°F
L: 60°F
Sunny
Thu
H: 76°F
L: 60°F
Partly Cloudy
Fri
H: 74°F
L: 58°F
Light rain shower
Sat
H: 72°F
L: 59°F
Sunny
Sun
H: 72°F
L: 51°F

Air Quality

AQI: 1 - Good
PM2.5: 8.8 μg/m3
PM10: 9 μg/m3
Carbon Monoxide: 144 μg/m3
Nitrogen Dioxide: 2.9 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 84 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 1:43 PM
Sunset: 9:26 PM
Daylight: 15 hrs 27 mins
Moonrise: 7:16 AM
Moon Transit: 3:04 PM
Moonset: 10:35 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

2:53 AM - 5:23 AM
2:34 PM - 5:04 PM

Minor Periods

10:05 PM - 11:35 PM
6:46 AM - 8:16 AM

Action Rating: 3 out of 5

Dense Smoke Advisory issued July 15 at 10:36AM EDT until July 16 at 8:00AM EDT by NWS Gaylord MI

Effective: Wed July 15, 2026, 2:36 PM
Expires: Wed July 15, 2026, 10:45 PM

* WHAT...For the Dense Smoke Advisory, dense smoke will reduce visibility to 1 to 2 NM, locally lower. For the Small Craft Advisory, Highest gusts up to 25 kts from the northwest and highest waves around 4 feet expected. * WHERE...St Ignace to False Detour Channel, 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island and Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary. * WHEN...For the Dense Smoke Advisory, until 8 AM EDT Thursday. For the Small Craft Advisory, from 5 PM this afternoon to midnight EDT tonight. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. * ADDITIONAL DETAILS...

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.


Small Craft Advisory issued July 15 at 10:36AM EDT until July 16 at 12:00AM EDT by NWS Gaylord MI

Effective: Wed July 15, 2026, 2:36 PM
Expires: Wed July 15, 2026, 10:45 PM

* WHAT...For the Dense Smoke Advisory, dense smoke will reduce visibility to 1 to 2 NM, locally lower. For the Small Craft Advisory, Highest gusts up to 25 kts from the northwest and highest waves around 4 feet expected. * WHERE...St Ignace to False Detour Channel, 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island and Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary. * WHEN...For the Dense Smoke Advisory, until 8 AM EDT Thursday. For the Small Craft Advisory, from 5 PM this afternoon to midnight EDT tonight. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. * ADDITIONAL DETAILS...

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.


Small Craft Advisory issued July 15 at 3:34PM EDT until July 16 at 12:00AM EDT by NWS Gaylord MI

Effective: Wed July 15, 2026, 7:34 PM
Expires: Thu July 16, 2026, 3:45 AM

* WHAT...For the Dense Smoke Advisory, dense smoke will reduce visibility to 1 to 2 NM. For the Small Craft Advisory, Highest gusts up to 25 kts from the northwest and highest waves around 4 feet expected. * WHERE...St Ignace to False Detour Channel, 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island and Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary. * WHEN...For the Dense Smoke Advisory, until 8 AM EDT Thursday. For the Small Craft Advisory, until midnight EDT tonight. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.


Dense Smoke Advisory issued July 15 at 3:34PM EDT until July 16 at 8:00AM EDT by NWS Gaylord MI

Effective: Wed July 15, 2026, 7:34 PM
Expires: Thu July 16, 2026, 3:45 AM

* WHAT...For the Dense Smoke Advisory, dense smoke will reduce visibility to 1 to 2 NM. For the Small Craft Advisory, Highest gusts up to 25 kts from the northwest and highest waves around 4 feet expected. * WHERE...St Ignace to False Detour Channel, 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island and Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary. * WHEN...For the Dense Smoke Advisory, until 8 AM EDT Thursday. For the Small Craft Advisory, until midnight EDT tonight. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.


Wednesday, July 15, 2026

Weather Forecast

Sunny
81.1°F
60.3°F
70.1°F
71%
0 in
6%
0%
11.2 mph
4.5


Air Quality

AQI: 1 - Good
PM2.5: 7.86 μg/m3
PM10: 8.03 μg/m3
Carbon Monoxide: 132 μg/m3
Nitrogen Dioxide: 2.85 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 85.04 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 1:43 PM
Sunset: 9:26 PM
Daylight: 15 hrs 27 mins
Moonrise: 7:16 AM
Moon Transit: 3:04 PM
Moonset: 10:35 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

2:53 AM - 5:23 AM
2:34 PM - 5:04 PM

Minor Periods

10:05 PM - 11:35 PM
6:46 AM - 8:16 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
75.6°F
59.7°F
66.3°F
64%
0 in
4%
0%
10.7 mph
5.9


Air Quality

AQI: 1 - Good
PM2.5: 7.68 μg/m3
PM10: 7.81 μg/m3
Carbon Monoxide: 157.58 μg/m3
Nitrogen Dioxide: 2.28 μg/m3
Sulphur Dioxide: 0.85 μg/m3
Ozone: 75.96 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 1:43 PM
Sunset: 9:25 PM
Daylight: 15 hrs 25 mins
Moonrise: 8:41 AM
Moon Transit: 3:57 PM
Moonset: 10:57 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

3:49 AM - 6:19 AM
3:27 PM - 5:57 PM

Minor Periods

10:27 PM - 11:57 PM
8:11 AM - 9:41 AM

Action Rating: 4 out of 5

Friday, July 17, 2026

Weather Forecast

Partly Cloudy
73.8°F
58°F
63.8°F
74%
0.12 in
67%
0%
6.9 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 4.06 μg/m3
PM10: 4.24 μg/m3
Carbon Monoxide: 113.96 μg/m3
Nitrogen Dioxide: 2.44 μg/m3
Sulphur Dioxide: 0.68 μg/m3
Ozone: 69.17 μg/m3

Astronomical

Sunrise: 6:02 AM
Sun Transit: 1:43 PM
Sunset: 9:25 PM
Daylight: 15 hrs 23 mins
Moonrise: 10:01 AM
Moon Transit: 4:46 PM
Moonset: 11:16 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

4:39 AM - 7:09 AM
4:16 PM - 6:46 PM

Minor Periods

12:00 AM - 12:00 AM
9:31 AM - 11:01 AM

Action Rating: 2 out of 5

Saturday, July 18, 2026

Weather Forecast

Light rain shower
72.4°F
59.2°F
64°F
89%
0.51 in
89%
0%
13.6 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 6.44 μg/m3
PM10: 6.67 μg/m3
Carbon Monoxide: 126.44 μg/m3
Nitrogen Dioxide: 1.68 μg/m3
Sulphur Dioxide: 0.46 μg/m3
Ozone: 84.42 μg/m3

Astronomical

Sunrise: 6:03 AM
Sun Transit: 1:43 PM
Sunset: 9:24 PM
Daylight: 15 hrs 21 mins
Moonrise: 11:16 AM
Moon Transit: 5:31 PM
Moonset: 12:16 AM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

5:26 AM - 7:56 AM
5:01 PM - 7:31 PM

Minor Periods

10:46 AM - 12:16 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
72°F
51.2°F
62.9°F
58%
0 in
4%
0%
8.5 mph
7.8


Air Quality

AQI: 1 - Good
PM2.5: 6.94 μg/m3
PM10: 7.1 μg/m3
Carbon Monoxide: 173.33 μg/m3
Nitrogen Dioxide: 2.27 μg/m3
Sulphur Dioxide: 0.61 μg/m3
Ozone: 56.67 μg/m3

Astronomical

Sunrise: 6:04 AM
Sun Transit: 1:43 PM
Sunset: 9:23 PM
Daylight: 15 hrs 19 mins
Moonrise: 12:29 AM
Moon Transit: 6:15 PM
Moonset: 12:33 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

6:10 AM - 8:40 AM
5:45 PM - 8:15 PM

Minor Periods

11:59 AM - 1:29 PM
12:00 AM - 12:00 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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