Water Temperature of the St. Marys River in Sault Ste. Marie, MI
Current Water Temperature
Measurement Time: Tuesday, January 20, 2026, 9:48 AM EST
Temperature Locations
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Local Points of Interest
Rotary Park; Rotary Island; Steers Island; Island Number One; Sault Sainte MarieStation 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

Five Day Weather Forecast

Tue
H: 10°F
L: -3°F

Wed
H: 22°F
L: 4°F

Thu
H: 17°F
L: 6°F

Fri
H: 27°F
L: -20°F

Sat
H: 9°F
L: -28°F
Air Quality
Nitrogen Dioxide: 2.05 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 76 μg/m3
Astronomical
Sun Transit: 12:48 AM
Sunset: 5:24 PM
Daylight: 9 hrs 10 mins
Moon Transit: 2:23 PM
Moonset: 7:32 PM
Moon Phase: New
Moon Illumination: 3.1%
Best Times for Fishing or Hunting
Major Periods
2:16 AM - 4:46 AM1:53 PM - 4:23 PM
Minor Periods
7:02 PM - 8:32 PM8:55 AM - 10:25 AM
Action Rating: 3 out of 5
yellow warning - 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: Tue January 20, 2026, 2:49 AM
Expires: Tue January 20, 2026, 2:00 PM
Lake effect snow continues. What: Snowfall accumulations of 15 to 30 cm. The highest amounts are most likely near Lake Superior. Significantly reduced visibility in heavy snow and local blowing snow. When: Continuing through early this morning. Additional information: Northwesterly winds gusting up to 50 km/h will result in local blowing snow. Lake effect snow will lift north of the area this morning as winds become westerly. ### Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Roads and walkways will likely be difficult to navigate due to accumulating 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
Prepare for quickly changing and deteriorating travel conditions.
yellow warning - 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: Mon January 19, 2026, 4:02 PM
Expires: Tue January 20, 2026, 8:02 AM
Lake effect snow tonight through Tuesday morning. What: Snowfall accumulations of 15 to 30 cm. The highest amounts are most likely near Lake Superior. Significantly reduced visibility in heavy snow and local blowing snow. When: This evening through Tuesday morning. Additional information: Northwesterly winds gusting up to 50 km/h will result in local blowing snow. Lake effect snow will lift north of the area Tuesday morning as winds become westerly. ### Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Roads and walkways will likely be difficult to navigate due to accumulating 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
Prepare for quickly changing and deteriorating travel conditions.
Winter Weather Advisory issued January 19 at 3:48PM EST until January 20 at 7:00AM EST by NWS Gaylord MI
Effective: Mon January 19, 2026, 3:48 PM
Expires: Tue January 20, 2026, 5:00 AM
* WHAT...Lake effect snow. Additional snow accumulations up to 4 inches. Winds gusting as high as 30 mph through midnight. * WHERE...Central Chippewa, Eastern Mackinac, Southeast Chippewa, and Western Mackinac Counties. * WHEN...Until 7 AM EST Tuesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Monday evening and Tuesday morning commutes.
Slow down and use caution while traveling. Persons are urged to stay indoors until conditions improve. If you must go outside, dress in layers. Several layers of clothes will keep you warmer than a single heavy coat. Cover exposed skin to reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a hat will keep you from losing your body heat. During lake effect snow, the weather can vary from bands of locally heavy snow to dry weather just a few miles away. Visibilities can also vary greatly. Be prepared for rapid changes in weather, visibility, and road conditions.
Winter Storm Warning issued January 19 at 3:48PM EST until January 20 at 7:00AM EST by NWS Gaylord MI
Effective: Mon January 19, 2026, 3:48 PM
Expires: Tue January 20, 2026, 5:00 AM
* WHAT...Heavy lake effect snow. Additional snow accumulations 4 to 8 inches. * WHERE...Western Chippewa County. * WHEN...Until 7 AM EST Tuesday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult. The hazardous conditions could impact the Monday evening and Tuesday morning commutes.
If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Persons are urged to stay indoors until conditions improve. If you must go outside, dress in layers. Several layers of clothes will keep you warmer than a single heavy coat. Cover exposed skin to reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a hat will keep you from losing your body heat. During lake effect snow, the weather can vary from bands of locally heavy snow to dry weather just a few miles away. Visibilities can also vary greatly. Be prepared for rapid changes in weather, visibility, and road conditions.
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.35 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 73.76 μg/m3
Astronomical
Sun Transit: 12:48 AM
Sunset: 5:24 PM
Daylight: 9 hrs 10 mins
Moon Transit: 2:23 PM
Moonset: 7:32 PM
Moon Phase: New
Moon Illumination: 3.1%
Best Times for Fishing or Hunting
Major Periods
2:16 AM - 4:46 AM1:53 PM - 4:23 PM
Minor Periods
7:02 PM - 8:32 PM8:55 AM - 10:25 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.34 μg/m3
Sulphur Dioxide: 1.99 μg/m3
Ozone: 77.32 μg/m3
Astronomical
Sun Transit: 12:48 AM
Sunset: 5:25 PM
Daylight: 9 hrs 13 mins
Moon Transit: 3:08 PM
Moonset: 8:45 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%
Best Times for Fishing or Hunting
Major Periods
3:02 AM - 5:32 AM2:38 PM - 5:08 PM
Minor Periods
8:15 PM - 9:45 PM9:14 AM - 10:44 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.9 μg/m3
Sulphur Dioxide: 1.52 μg/m3
Ozone: 71.28 μg/m3
Astronomical
Sun Transit: 12:48 AM
Sunset: 5:27 PM
Daylight: 9 hrs 15 mins
Moon Transit: 3:52 PM
Moonset: 9:58 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%
Best Times for Fishing or Hunting
Major Periods
3:47 AM - 6:17 AM3:22 PM - 5:52 PM
Minor Periods
9:28 PM - 10:58 PM9:31 AM - 11:01 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.21 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 68.12 μg/m3
Astronomical
Sun Transit: 12:49 AM
Sunset: 5:28 PM
Daylight: 9 hrs 17 mins
Moon Transit: 9:54 AM
Moonset: 11:13 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%
Best Times for Fishing or Hunting
Major Periods
9:24 AM - 11:54 AM9:24 AM - 11:54 AM
Minor Periods
12:00 AM - 12:00 AM9:48 AM - 11:18 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.26 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 62.38 μg/m3
Astronomical
Sun Transit: 12:49 AM
Sunset: 5:29 PM
Daylight: 9 hrs 20 mins
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 AM4:53 PM - 7:23 PM
Minor Periods
10:05 AM - 11:35 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
