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

Current Water Temperature

53.8°F

Measurement Time: Monday, June 29, 2026, 7:06 AM 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

59.5°F

Conditions: Sunny

Feels Like: 59.5°F

Heat Index: 61°F

Humidity: 90%

Wind: ESE 8.3 mph

Wind Gusts: 15.9 mph

Wind Chill: 61°F

Dew Point: 57.6°F

Precipitation: 0 in

Cloud Cover: 0%

Visibility: 9 mi

Air Pressure: 1016 mbar

UV Index: 0.3

Five Day Weather Forecast

Mon
H: 85°F
L: 59°F

Tue
H: 88°F
L: 63°F

Wed
H: 84°F
L: 65°F

Thu
H: 85°F
L: 66°F

Fri
H: 85°F
L: 62°F

Air Quality

PM2.5: 7.2 μg/m3

PM10: 7.5 μg/m3

Carbon Monoxide: 103 μg/m3
Nitrogen Dioxide: 2.7 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 70 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:40 PM
Sunset: 9:34 PM
Daylight: 15 hrs 47 mins

Moonrise: 9:58 PM
Moon Transit: 1:02 AM
Moonset: 4:55 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:32 AM - 3:02 AM
1:45 PM - 4:15 PM

Minor Periods

9:28 PM - 10:58 PM
4:25 AM - 5:55 AM

Action Rating: 5 out of 5

Small Craft Advisory issued June 28 at 11:24PM EDT until June 29 at 11:00PM EDT by NWS Gaylord MI

Effective: Sun June 28, 2026, 11:24 PM
Expires: Mon June 29, 2026, 7:30 AM

* WHAT...Highest gusts up to 25 kts from the southeast and highest waves around 4 feet expected. * WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island, 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...From 11 AM to 11 PM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.

Small Craft Advisory issued June 29 at 2:37AM EDT until June 29 at 11:00PM EDT by NWS Gaylord MI

Effective: Mon June 29, 2026, 2:37 AM
Expires: Mon June 29, 2026, 2:15 PM

* WHAT...Highest gusts up to 25 kts from the southeast and highest waves around 4 feet expected. * WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island, 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...From 11 AM this morning to 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.

Monday, June 29, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 84.7°F

Low Temperature: 58.5°F

Average Temperature: 68°F

Average Humidity: 78%

Precipitation: 0.02 in

Chance of Rain: 38%

Chance of Snow: 0%

Maximum Wind: 13.6 mph

UV Index: 4.8

Air Quality

AQI: 1 - Good

PM2.5: 6.15 μg/m3

PM10: 6.35 μg/m3

Carbon Monoxide: 119.5 μg/m3
Nitrogen Dioxide: 3.06 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 81.38 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:40 PM
Sunset: 9:34 PM
Daylight: 15 hrs 47 mins

Moonrise: 9:58 PM
Moon Transit: 1:02 AM
Moonset: 4:55 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:32 AM - 3:02 AM
1:45 PM - 4:15 PM

Minor Periods

9:28 PM - 10:58 PM
4:25 AM - 5:55 AM

Action Rating: 5 out of 5

Tuesday, June 30, 2026

Weather Forecast

Conditions: Fog

High Temperature: 87.6°F

Low Temperature: 62.5°F

Average Temperature: 71.8°F

Average Humidity: 90%

Precipitation: 0.73 in

Chance of Rain: 89%

Chance of Snow: 0%

Maximum Wind: 16.3 mph

UV Index: 8.5

Air Quality

AQI: 1 - Good

PM2.5: 4.15 μg/m3

PM10: 4.37 μg/m3

Carbon Monoxide: 133.5 μg/m3
Nitrogen Dioxide: 2.81 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 87.13 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:40 PM
Sunset: 9:34 PM
Daylight: 15 hrs 46 mins

Moonrise: 10:34 PM
Moon Transit: 1:54 AM
Moonset: 5:54 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

1:24 AM - 3:54 AM
2:36 PM - 5:06 PM

Minor Periods

10:04 PM - 11:34 PM
5:24 AM - 6:54 AM

Action Rating: 4 out of 5

Wednesday, July 1, 2026

Weather Forecast

Conditions: Patchy rain nearby

High Temperature: 84.2°F

Low Temperature: 65.2°F

Average Temperature: 72.4°F

Average Humidity: 88%

Precipitation: 0.26 in

Chance of Rain: 86%

Chance of Snow: 0%

Maximum Wind: 10.3 mph

UV Index: 8.4

Air Quality

AQI: 1 - Good

PM2.5: 5.9 μg/m3

PM10: 6.98 μg/m3

Carbon Monoxide: 141.26 μg/m3
Nitrogen Dioxide: 2.55 μg/m3
Sulphur Dioxide: 0.76 μg/m3
Ozone: 83.5 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:41 PM
Sunset: 9:33 PM
Daylight: 15 hrs 45 mins

Moonrise: 11:02 PM
Moon Transit: 2:43 AM
Moonset: 7:00 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

2:13 AM - 4:43 AM
3:25 PM - 5:55 PM

Minor Periods

12:00 AM - 12:00 AM
6:30 AM - 8:00 AM

Action Rating: 3 out of 5

Thursday, July 2, 2026

Weather Forecast

Conditions: Fog

High Temperature: 84.6°F

Low Temperature: 66.1°F

Average Temperature: 71.7°F

Average Humidity: 90%

Precipitation: 0.41 in

Chance of Rain: 89%

Chance of Snow: 0%

Maximum Wind: 8.5 mph

UV Index: 9.2

Air Quality

AQI: 1 - Good

PM2.5: 5.29 μg/m3

PM10: 6.45 μg/m3

Carbon Monoxide: 201.24 μg/m3
Nitrogen Dioxide: 2.36 μg/m3
Sulphur Dioxide: 0.81 μg/m3
Ozone: 98.14 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:41 PM
Sunset: 9:33 PM
Daylight: 15 hrs 44 mins

Moonrise: 12:02 AM
Moon Transit: 3:31 AM
Moonset: 8:09 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

3:01 AM - 5:31 AM
4:11 PM - 6:41 PM

Minor Periods

7:39 AM - 9:09 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Friday, July 3, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 84.8°F

Low Temperature: 62.3°F

Average Temperature: 71.7°F

Average Humidity: 85%

Precipitation: 1.39 in

Chance of Rain: 84%

Chance of Snow: 0%

Maximum Wind: 18.3 mph

UV Index: 7

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: 5:50 AM
Sun Transit: 1:41 PM
Sunset: 9:33 PM
Daylight: 15 hrs 43 mins

Moonrise: 12:25 AM
Moon Transit: 4:17 AM
Moonset: 9:18 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

3:47 AM - 6:17 AM
4:56 PM - 7:26 PM

Minor Periods

8:48 AM - 10:18 AM
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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Water Temperature of the St. Marys River in Sault Ste. Marie, MI

Current Water Temperature

Temperature Locations

Local Points of Interest

Nearby Water Temperatures

Weather for Sault Ste. Marie, Michigan

Current Weather

Five Day Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Small Craft Advisory issued June 28 at 11:24PM EDT until June 29 at 11:00PM EDT by NWS Gaylord MI

Small Craft Advisory issued June 29 at 2:37AM EDT until June 29 at 11:00PM EDT by NWS Gaylord MI

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Webcams Near Sault Ste. Marie, MI

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