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

Current Water Temperature

40.6°F

Measurement Time: Saturday, January 17, 2026, 6:30 AM EST

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

19.9°F
Mist
Mist
15.4°F
17.7°F
96%
NE 3.1 mph
5.8 mph
13.4°F
15.4°F
0 in
100%
4 mi
1002 mbar
0

Five Day Weather Forecast

Overcast
Sat
H: 26°F
L: 16°F
Freezing fog
Sun
H: 13°F
L: -11°F
Heavy snow
Mon
H: 13°F
L: -10°F
Patchy moderate snow
Tue
H: -6°F
L: -21°F
Light snow
Wed
H: 10°F
L: -22°F

Air Quality

PM2.5: 3.25 μg/m3
PM10: 3.25 μg/m3
Carbon Monoxide: 162.85 μg/m3
Nitrogen Dioxide: 8.75 μg/m3
Sulphur Dioxide: 2.75 μg/m3
Ozone: 47 μg/m3

Astronomical

Sunrise: 8:16 AM
Sun Transit: 12:47 AM
Sunset: 5:20 PM
Daylight: 9 hrs 4 mins
Moonrise: 7:58 AM
Moon Transit: 11:55 AM
Moonset: 3:56 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:25 AM - 1:55 PM

Minor Periods

3:26 PM - 4:56 PM
7:28 AM - 8:58 AM

Action Rating: 4 out of 5

yellow warning - snowfall - 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: Fri January 16, 2026, 11:59 AM
Expires: Sat January 17, 2026, 3:59 AM

Lake enhanced snowfall expected today. What: Snowfall amounts near 15 cm. Reduced visibility at times in heavy snow and local blowing snow. When: Continuing into early Saturday morning. Additional information: Lake enhanced snowfall may lead to locally higher amounts, particularly if a heavy snow band remains over an area for a prolonged period of time. ### Roads and walkways will likely be difficult to navigate due to accumulating snow. Visibility will likely be reduced at times. 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 - snowfall - 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: Fri January 16, 2026, 3:44 PM
Expires: Sat January 17, 2026, 6:03 AM

Lake enhanced snowfall continues. What: Snowfall amounts near 15 cm. Reduced visibility at times in heavy snow and local blowing snow. When: Continuing into early Saturday morning. Additional information: Lake enhanced snowfall may lead to locally higher amounts, particularly if a heavy snow band remains over an area for a prolonged period of time. ### Roads and walkways will likely be difficult to navigate due to accumulating snow. Visibility will likely be reduced at times. 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 - snowfall - 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: Fri January 16, 2026, 11:18 PM
Expires: Sat January 17, 2026, 9:00 AM

Lake enhanced snowfall continues. What: Snowfall amounts near 15 cm. Reduced visibility at times in heavy snow and local blowing snow. When: Continuing into early Saturday morning. Additional information: Lake enhanced snowfall may lead to locally higher amounts, particularly if a heavy snow band remains over an area for a prolonged period of time. ### Roads and walkways will likely be difficult to navigate due to accumulating snow. Visibility will likely be reduced at times. 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.


Saturday, January 17, 2026

Weather Forecast

Overcast
25.7°F
16.3°F
20.5°F
87%
0 in
0%
6%
7.6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.53 μg/m3
PM10: 2.57 μg/m3
Carbon Monoxide: 195.89 μg/m3
Nitrogen Dioxide: 6.23 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 55.48 μg/m3

Astronomical

Sunrise: 8:16 AM
Sun Transit: 12:47 AM
Sunset: 5:20 PM
Daylight: 9 hrs 4 mins
Moonrise: 7:58 AM
Moon Transit: 11:55 AM
Moonset: 3:56 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:25 AM - 1:55 PM

Minor Periods

3:26 PM - 4:56 PM
7:28 AM - 8:58 AM

Action Rating: 4 out of 5

Sunday, January 18, 2026

Weather Forecast

Freezing fog
13.2°F
-11°F
4.7°F
95%
0.03 in
78%
58%
5.6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.59 μg/m3
PM10: 2.61 μg/m3
Carbon Monoxide: 199.31 μg/m3
Nitrogen Dioxide: 6.13 μg/m3
Sulphur Dioxide: 1.67 μg/m3
Ozone: 56.62 μg/m3

Astronomical

Sunrise: 8:15 AM
Sun Transit: 12:47 AM
Sunset: 5:21 PM
Daylight: 9 hrs 6 mins
Moonrise: 8:34 AM
Moon Transit: 12:46 AM
Moonset: 5:06 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:38 AM - 3:08 AM
12:16 AM - 2:46 PM

Minor Periods

4:36 PM - 6:06 PM
8:04 AM - 9:34 AM

Action Rating: 4 out of 5

Monday, January 19, 2026

Weather Forecast

Heavy snow
13.3°F
-9.9°F
6.3°F
92%
0.09 in
85%
62%
13.6 mph
0


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: 8:14 AM
Sun Transit: 12:48 AM
Sunset: 5:22 PM
Daylight: 9 hrs 8 mins
Moonrise: 9:02 AM
Moon Transit: 1:35 PM
Moonset: 6:19 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

1:28 AM - 3:58 AM
1:05 PM - 3:35 PM

Minor Periods

5:49 PM - 7:19 PM
8:32 AM - 10:02 AM

Action Rating: 5 out of 5

Tuesday, January 20, 2026

Weather Forecast

Patchy moderate snow
-5.6°F
-21.4°F
-13.4°F
92%
0.04 in
88%
40%
7.8 mph
1


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: 8:13 AM
Sun Transit: 12:48 AM
Sunset: 5:24 PM
Daylight: 9 hrs 10 mins
Moonrise: 9:25 AM
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 AM
1:53 PM - 4:23 PM

Minor Periods

7:02 PM - 8:32 PM
8:55 AM - 10:25 AM

Action Rating: 3 out of 5

Wednesday, January 21, 2026

Weather Forecast

Light snow
10.3°F
-21.6°F
-4°F
96%
0.02 in
64%
62%
5.6 mph
1


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: 8:12 AM
Sun Transit: 12:48 AM
Sunset: 5:25 PM
Daylight: 9 hrs 13 mins
Moonrise: 9:44 AM
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 AM
2:38 PM - 5:08 PM

Minor Periods

8:15 PM - 9:45 PM
9:14 AM - 10:44 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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