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

Current Water Temperature

46.0°F

Measurement Time: Thursday, November 27, 2025, 4:36 AM EST

Temperature Locations

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Local Points of Interest

Ashmun Bay; Whitefish Island; St. Mary's Island; Soo Locks; Sault Sainte Marie

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St. Marys River

Station Name: S.W. Pier, St. Marys River
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 597 feet / 182 meters

Sensor Depth: -3.8 feet / -1.2 meters

Nearest Address:
Point West Dr
Sault Ste. Marie, MI 49783
Chippewa County

GPS Coordinates: 46.501111, -84.372611

Nearby Water Temperatures

St. Marys River, Sault Ste. Marie, MI (3.5 mi)
St. Marys River, Barbeau, MI (16.8 mi)
St. Marys River, Barbeau, MI (18.5 mi)
Lake Huron, De Tour Village, MI (41.8 mi)
Straits of Mackinac, Mackinaw City, MI (50.5 mi)
Lake Huron, Bois Blanc Island, MI (51.6 mi)
Seul Choix Bay, Port Inland, MI (80.5 mi)
Little Traverse Bay, Petoskey, MI (83.1 mi)
Miners River, Munising, MI (103.1 mi)
Lake Huron, Alpena, MI (108.3 mi)
Thunder Bay River, Alpena, MI (109.3 mi)
Lake Huron, Alpena, MI (117.3 mi)
North Branch Au Sable River, Grayling, MI (123.3 mi)
Au Sable River, Luzerne, MI (126.1 mi)
Lake Michigan, Leland, MI (126.3 mi)

Weather for Sault Ste. Marie, Michigan

Current Weather

27°F
Light snow
Conditions: Light snow
Humidity: 81%
Feels Like: 14.7°F
Wind: NNW 16.1 mph
Wind Gusts: 20.7 mph
Pressure: 29.59 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 3 mi
UV Index: 0

Five Day Weather Forecast

Light freezing rain
Thu
H: 29°F
L: 25°F
Partly Cloudy
Fri
H: 28°F
L: 26°F
Patchy moderate snow
Sat
H: 30°F
L: 24°F
Heavy snow
Sun
H: 29°F
L: 21°F
Moderate or heavy snow showers
Mon
H: 23°F
L: 17°F

Air Quality

AQI: 1 - Good
PM2.5: 0.95 μg/m3
PM10: 0.95 μg/m3
Carbon Monoxide: 173.85 μg/m3
Nitrogen Dioxide: 1.75 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 74 μg/m3

Astronomical

Sunrise: 7:56 AM
Sun Transit: 12:25 AM
Sunset: 4:54 PM
Daylight: 8 hrs 58 mins
Moonrise: 1:14 PM
Moon Transit: 6:27 PM
Moonset: 11:51 PM
Moon Phase: First Quarter
Moon Illumination: 46.5%

Best Times for Fishing or Hunting

Major Periods

6:20 AM - 8:50 AM
5:57 PM - 8:27 PM

Minor Periods

12:00 AM - 12:00 AM
12:44 AM - 2:14 PM

Action Rating: 2 out of 5

yellow watch - snow squall - in effect

Service Notice – November 2025: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2025, changes are expected to include... 1) ECCC's initiative to upgrade the presentation of alerts into Colour-Coded Weather Alerts is tentatively set for deployment November 26, 2025. Data changes will appear in CAP following this deployment, 2) the alert name ‘extreme cold warning’ will change to ‘cold warning’, 3) two Public zone names will change in Saskatchewan, 4) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard continues, there will be changes coming to CAP and 5) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – novembre 2025: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2025, il y aura des changements incluant... 1) l'initiative d'ECCC visant à améliorer la présentation des alertes sous forme d'alertes météorologiques codées par couleur est provisoirement prévue pour un déploiement le 26 novembre 2025. Des changements aux données apparaîtront dans le PAC suite à ce déploiement, 2) le nom de l’alerte ‘avertissement de froid extrême’ changera pour ‘avertissement de froid’, 3) deux noms de zones publiques seront modifiés en Saskatchewan, 4) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique se poursuit. Des changements seront également apportés au PAC et 5) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/

Effective: Wed November 26, 2025, 1:10 PM
Expires: Thu November 27, 2025, 5:10 AM

Snow squalls possible beginning Thursday morning. What: Local snowfall amounts of 5 to 15 cm. Near zero visibility at times in heavy snow and local blowing snow. When: Thursday and Thursday night. Additional information: Snow squalls are expected to develop over Lake Superior and Whitefish Bay Thursday morning. It is uncertain if these squalls will affect the shoreline as they could remain over the lakes. Strong winds are also expected, further reducing visibility in local blowing snow. ### Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.

Prepare for the possibility of quickly changing and deteriorating travel conditions. Prepare for possible disruptions to transportation, services, and utilities.


yellow watch - snow squall - in effect

Service Notice – November 2025: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2025, changes are expected to include... 1) ECCC's initiative to upgrade the presentation of alerts into Colour-Coded Weather Alerts is tentatively set for deployment November 26, 2025. Data changes will appear in CAP following this deployment, 2) the alert name ‘extreme cold warning’ will change to ‘cold warning’, 3) two Public zone names will change in Saskatchewan, 4) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard continues, there will be changes coming to CAP and 5) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – novembre 2025: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2025, il y aura des changements incluant... 1) l'initiative d'ECCC visant à améliorer la présentation des alertes sous forme d'alertes météorologiques codées par couleur est provisoirement prévue pour un déploiement le 26 novembre 2025. Des changements aux données apparaîtront dans le PAC suite à ce déploiement, 2) le nom de l’alerte ‘avertissement de froid extrême’ changera pour ‘avertissement de froid’, 3) deux noms de zones publiques seront modifiés en Saskatchewan, 4) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique se poursuit. Des changements seront également apportés au PAC et 5) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/

Effective: Wed November 26, 2025, 11:03 PM
Expires: Thu November 27, 2025, 3:03 PM

Snow squalls possible beginning Thursday morning. What: Local snowfall amounts of 5 to 15 cm. Near zero visibility at times in heavy snow and local blowing snow. When: Thursday and Thursday night. Additional information: Snow squalls are expected to develop over Lake Superior and Whitefish Bay Thursday morning. It is uncertain if these squalls will affect the shoreline as they could remain over the lakes. Strong winds are also expected, further reducing visibility in local blowing snow. ### Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.

Prepare for the possibility of quickly changing and deteriorating travel conditions. Prepare for possible disruptions to transportation, services, and utilities.


Winter Weather Advisory issued November 26 at 3:32PM EST until November 28 at 7:00PM EST by NWS Gaylord MI

Effective: Wed November 26, 2025, 3:32 PM
Expires: Thu November 27, 2025, 6:45 AM

...HIGH IMPACT LAKE EFFECT SNOW AND WINDS FOR THE THANKSGIVING HOLIDAY... .Heavy lake effect snow and strong winds will combine to create dangerous travel at times across parts of northern Michigan Wednesday night through Friday. Worst widespread travel conditions are expected late this evening into Thursday morning. Localized dangerous travel will be possible under heavy lake effect snow bands Thursday morning into Thursday night, especially across stretches of US-131 and I-75. * WHAT...Lake effect snow expected. Total snow accumulations between 2 and 6 inches west of Drummond Island. Winds gusting as high as 40 mph. * WHERE...Southeast Chippewa County. * WHEN...From midnight tonight to 7 PM EST Friday. * IMPACTS...Snow and strong winds will lead to significant drops in visibility at times, making for hazardous travel.

Slow down and use caution while traveling.


Winter Storm Warning issued November 26 at 3:32PM EST until November 28 at 7:00PM EST by NWS Gaylord MI

Effective: Wed November 26, 2025, 3:32 PM
Expires: Thu November 27, 2025, 6:45 AM

...HIGH IMPACT LAKE EFFECT SNOW AND WINDS FOR THE THANKSGIVING HOLIDAY... .Heavy lake effect snow and strong winds will combine to create dangerous travel at times across parts of northern Michigan Wednesday night through Friday. Worst widespread travel conditions are expected late this evening into Thursday morning. Localized dangerous travel will be possible under heavy lake effect snow bands Thursday morning into Thursday night, especially across stretches of US-131 and I-75. * WHAT...Heavy lake effect snow and strong winds expected. Total snow accumulations between 4 and 8 inches. Winds gusting as high as 45 mph. * WHERE...Central Chippewa, Eastern Mackinac, Western Chippewa, and Western Mackinac Counties. * WHEN...From 7 PM this evening to 7 PM EST Friday. * IMPACTS...Heavy snow and strong winds will lead to significant drops in visibility. Whiteout conditions are expected at times of heaviest snow and winds, most likely Wednesday evening into Thursday morning. Combination of visibility restrictions and snow covered roads will make for hazardous travel.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency.


Wind Advisory issued November 26 at 3:00PM EST until November 27 at 7:00AM EST by NWS Gaylord MI

Effective: Wed November 26, 2025, 3:00 PM
Expires: Thu November 27, 2025, 7:00 AM

* WHAT...Northwest winds 10 to 25 mph with gusts up to 50 mph expected. * WHERE...Portions of Eastern Upper and Northern Lower Michigan. * WHEN...From 7 PM this evening to 7 AM EST Thursday. * IMPACTS...Strong winds will blow around loose objects, including blowing and drifting snow. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.


Thursday, November 27, 2025

Weather Forecast

Conditions: Light freezing rain
Average Temperature: 27.2°F
Average Humidity: 83%
Chance of Rain: 78%
Wind: 17.7 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 1.08 μg/m3
PM10: 1.09 μg/m3
Carbon Monoxide: 173.61 μg/m3
Nitrogen Dioxide: 2.25 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 71.84 μg/m3

Astronomical

Sunrise: 7:56 AM
Sun Transit: 12:25 AM
Sunset: 4:54 PM
Daylight: 8 hrs 58 mins
Moonrise: 1:14 PM
Moon Transit: 6:27 PM
Moonset: 11:51 PM
Moon Phase: First Quarter
Moon Illumination: 46.5%

Best Times for Fishing or Hunting

Major Periods

6:20 AM - 8:50 AM
5:57 PM - 8:27 PM

Minor Periods

12:00 AM - 12:00 AM
12:44 AM - 2:14 PM

Action Rating: 2 out of 5

Friday, November 28, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 26.9°F
Average Humidity: 72%
Chance of Rain: 0%
Wind: 15.4 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 1.19 μg/m3
PM10: 1.31 μg/m3
Carbon Monoxide: 141.45 μg/m3
Nitrogen Dioxide: 1.52 μg/m3
Sulphur Dioxide: 1.16 μg/m3
Ozone: 85.92 μg/m3

Astronomical

Sunrise: 7:57 AM
Sun Transit: 12:25 AM
Sunset: 4:54 PM
Daylight: 8 hrs 56 mins
Moonrise: 1:32 PM
Moon Transit: 7:12 PM
Moonset: 12:51 AM
Moon Phase: First Quarter
Moon Illumination: 57.8%

Best Times for Fishing or Hunting

Major Periods

7:06 AM - 9:36 AM
6:42 PM - 9:12 PM

Minor Periods

1:02 PM - 2:32 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, November 29, 2025

Weather Forecast

Conditions: Patchy moderate snow
Average Temperature: 26.6°F
Average Humidity: 74%
Chance of Rain: 83%
Wind: 6 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 1.52 μg/m3
PM10: 1.63 μg/m3
Carbon Monoxide: 147.49 μg/m3
Nitrogen Dioxide: 2.27 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 83.48 μg/m3

Astronomical

Sunrise: 7:59 AM
Sun Transit: 12:25 AM
Sunset: 4:53 PM
Daylight: 8 hrs 54 mins
Moonrise: 1:50 PM
Moon Transit: 7:58 PM
Moonset: 1:06 AM
Moon Phase: First Quarter
Moon Illumination: 68.7%

Best Times for Fishing or Hunting

Major Periods

8:42 PM - 11:12 PM
7:28 PM - 9:58 PM

Minor Periods

1:20 PM - 2:50 PM
12:36 AM - 2:06 AM

Action Rating: 2 out of 5

Sunday, November 30, 2025

Weather Forecast

Conditions: Heavy snow
Average Temperature: 26.3°F
Average Humidity: 92%
Chance of Rain: 75%
Wind: 16.8 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 1.57 μg/m3
PM10: 1.6 μg/m3
Carbon Monoxide: 152.25 μg/m3
Nitrogen Dioxide: 3.36 μg/m3
Sulphur Dioxide: 1.59 μg/m3
Ozone: 80.08 μg/m3

Astronomical

Sunrise: 8:00 AM
Sun Transit: 12:26 AM
Sunset: 4:53 PM
Daylight: 8 hrs 53 mins
Moonrise: 2:08 PM
Moon Transit: 8:46 PM
Moonset: 2:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.6%

Best Times for Fishing or Hunting

Major Periods

8:38 AM - 11:08 AM
8:16 PM - 10:46 PM

Minor Periods

1:38 PM - 3:08 PM
1:52 AM - 3:22 AM

Action Rating: 2 out of 5

Monday, December 1, 2025

Weather Forecast

Conditions: Moderate or heavy snow showers
Average Temperature: 20°F
Average Humidity: 81%
Chance of Rain: 60%
Wind: 15.9 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 1.63 μg/m3
PM10: 1.67 μg/m3
Carbon Monoxide: 151.47 μg/m3
Nitrogen Dioxide: 1.73 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 82.85 μg/m3

Astronomical

Sunrise: 8:01 AM
Sun Transit: 12:26 AM
Sunset: 4:52 PM
Daylight: 8 hrs 51 mins
Moonrise: 2:28 PM
Moon Transit: 9:37 PM
Moonset: 3:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 87.1%

Best Times for Fishing or Hunting

Major Periods

9:28 AM - 11:58 AM
9:07 PM - 11:37 PM

Minor Periods

1:58 PM - 3:28 PM
3:12 AM - 4:42 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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