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

Current Water Temperature

65.8°F

Measurement Time: Wednesday, July 23, 2025, 4:42 AM EDT

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

62.1°F
Partly Cloudy
Conditions: Partly Cloudy
Humidity: 84%
Feels Like: 62.1°F
Wind: ESE 4.9 mph
Wind Gusts: 10.3 mph
Pressure: 30.05 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Patchy rain nearby
Wed
H: 80°F
L: 62°F
Moderate rain
Thu
H: 75°F
L: 59°F
Fog
Fri
H: 72°F
L: 57°F
Patchy rain nearby
Sat
H: 83°F
L: 54°F
Cloudy
Sun
H: 81°F
L: 65°F

Air Quality

PM2.5: 13.88 μg/m3
PM10: 14.06 μg/m3
Carbon Monoxide: 382.95 μg/m3
Nitrogen Dioxide: 4.07 μg/m3
Sulphur Dioxide: 2.78 μg/m3
Ozone: 95 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 1:44 PM
Sunset: 9:19 PM
Daylight: 15 hrs 10 mins
Moonrise: 4:12 AM
Moon Transit: 12:46 AM
Moonset: 9:09 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:32 AM - 3:02 AM
12:16 AM - 2:46 PM

Minor Periods

8:39 PM - 10:09 PM
3:42 AM - 5:12 AM

Action Rating: 2 out of 5

avertissement de grains en vigueur

Service Notice – June 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 planned for deployment for later in 2025. Data changes will appear in CAP-CP upon this deployment, 2) SAME event codes for a few alert types are updated and 3) 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 – juin 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 prévue d’être déployée plus tard en 2025. Des changements aux données apparaîtront dans le PC-PAC lors de ce déploiement, 2) des codes d’événement MSSC pour quelques types d’alerte ont été mis à jour et 3) 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 July 22, 2025, 10:29 PM
Expires: Wed July 23, 2025, 1:31 AM

Squalls with wind gusts up to 35 knots and frequent lightning are expected or occurring in the area. A north to south line of thunderstorms, likely producing squalls, is moving east at 40 knots. ### Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Mariners are advised to prepare for squalls. If underway, seek safe harbour immediately. Consider delaying or postponing travel in areas under the squall warning.


avertissement de grains annulé

Service Notice – June 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 planned for deployment for later in 2025. Data changes will appear in CAP-CP upon this deployment, 2) SAME event codes for a few alert types are updated and 3) 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 – juin 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 prévue d’être déployée plus tard en 2025. Des changements aux données apparaîtront dans le PC-PAC lors de ce déploiement, 2) des codes d’événement MSSC pour quelques types d’alerte ont été mis à jour et 3) 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 July 23, 2025, 1:26 AM
Expires: Wed July 23, 2025, 2:26 AM

Squalls have weakened or moved out of the area. ###


avertissement de grains en vigueur

Service Notice – June 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 planned for deployment for later in 2025. Data changes will appear in CAP-CP upon this deployment, 2) SAME event codes for a few alert types are updated and 3) 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 – juin 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 prévue d’être déployée plus tard en 2025. Des changements aux données apparaîtront dans le PC-PAC lors de ce déploiement, 2) des codes d’événement MSSC pour quelques types d’alerte ont été mis à jour et 3) 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 July 23, 2025, 12:34 AM
Expires: Wed July 23, 2025, 2:31 AM

Squalls with wind gusts up to 40 knots and frequent lightning are expected or occurring in the area. A cluster of thunderstorms north of Grand Marais at 12:30 A.M. is moving east at 40 knots and is likely producing squalls. ### Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Mariners are advised to prepare for squalls. If underway, seek safe harbour immediately. Consider delaying or postponing travel in areas under the squall warning.


avertissement de grains en vigueur

Service Notice – June 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 planned for deployment for later in 2025. Data changes will appear in CAP-CP upon this deployment, 2) SAME event codes for a few alert types are updated and 3) 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 – juin 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 prévue d’être déployée plus tard en 2025. Des changements aux données apparaîtront dans le PC-PAC lors de ce déploiement, 2) des codes d’événement MSSC pour quelques types d’alerte ont été mis à jour et 3) 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 July 22, 2025, 10:29 PM
Expires: Wed July 23, 2025, 1:31 AM

Squalls with wind gusts up to 35 knots and frequent lightning are expected or occurring in the area. A north to south line of thunderstorms, likely producing squalls, is moving east at 40 knots. ### Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Mariners are advised to prepare for squalls. If underway, seek safe harbour immediately. Consider delaying or postponing travel in areas under the squall warning.


avertissement de grains annulé

Service Notice – June 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 planned for deployment for later in 2025. Data changes will appear in CAP-CP upon this deployment, 2) SAME event codes for a few alert types are updated and 3) 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 – juin 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 prévue d’être déployée plus tard en 2025. Des changements aux données apparaîtront dans le PC-PAC lors de ce déploiement, 2) des codes d’événement MSSC pour quelques types d’alerte ont été mis à jour et 3) 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 July 23, 2025, 1:26 AM
Expires: Wed July 23, 2025, 2:26 AM

Squalls have weakened or moved out of the area. ###


Wednesday, July 23, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 71.4°F
Average Humidity: 80%
Chance of Rain: 84%
Wind: 15 mph
UV Index: 1.9

Air Quality

AQI: 1 - Good
PM2.5: 13.21 μg/m3
PM10: 13.43 μg/m3
Carbon Monoxide: 347.5 μg/m3
Nitrogen Dioxide: 4.31 μg/m3
Sulphur Dioxide: 2.98 μg/m3
Ozone: 99.36 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 1:44 PM
Sunset: 9:19 PM
Daylight: 15 hrs 10 mins
Moonrise: 4:12 AM
Moon Transit: 12:46 AM
Moonset: 9:09 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:32 AM - 3:02 AM
12:16 AM - 2:46 PM

Minor Periods

8:39 PM - 10:09 PM
3:42 AM - 5:12 AM

Action Rating: 2 out of 5

Thursday, July 24, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 68.1°F
Average Humidity: 94%
Chance of Rain: 73%
Wind: 7.6 mph
UV Index: 1.4

Air Quality

AQI: 2 - Moderate
PM2.5: 15.61 μg/m3
PM10: 16.46 μg/m3
Carbon Monoxide: 363.78 μg/m3
Nitrogen Dioxide: 4.85 μg/m3
Sulphur Dioxide: 3.17 μg/m3
Ozone: 122.12 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 1:44 PM
Sunset: 9:18 PM
Daylight: 15 hrs 8 mins
Moonrise: 5:30 AM
Moon Transit: 1:44 PM
Moonset: 9:43 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

1:32 AM - 4:02 AM
1:14 PM - 3:44 PM

Minor Periods

9:13 PM - 10:43 PM
5:00 AM - 6:30 AM

Action Rating: 5 out of 5

Friday, July 25, 2025

Weather Forecast

Conditions: Fog
Average Temperature: 62.7°F
Average Humidity: 93%
Chance of Rain: 0%
Wind: 7.2 mph
UV Index: 1.7

Air Quality

AQI: 1 - Good
PM2.5: 5.62 μg/m3
PM10: 6.19 μg/m3
Carbon Monoxide: 314.13 μg/m3
Nitrogen Dioxide: 4.89 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 71.88 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 1:44 PM
Sunset: 9:17 PM
Daylight: 15 hrs 6 mins
Moonrise: 6:50 AM
Moon Transit: 2:37 PM
Moonset: 10:09 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

2:28 AM - 4:58 AM
2:07 PM - 4:37 PM

Minor Periods

9:39 PM - 11:09 PM
6:20 AM - 7:50 AM

Action Rating: 5 out of 5

Saturday, July 26, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 70.7°F
Average Humidity: 78%
Chance of Rain: 85%
Wind: 9.4 mph
UV Index: 2.1

Air Quality

AQI: 1 - Good
PM2.5: 11.85 μg/m3
PM10: 12.37 μg/m3
Carbon Monoxide: 475.88 μg/m3
Nitrogen Dioxide: 8.41 μg/m3
Sulphur Dioxide: 0.38 μg/m3
Ozone: 47.38 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 1:44 PM
Sunset: 9:15 PM
Daylight: 15 hrs 4 mins
Moonrise: 8:07 AM
Moon Transit: 3:26 PM
Moonset: 10:29 PM
Moon Phase: New
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

3:19 AM - 5:49 AM
2:56 PM - 5:26 PM

Minor Periods

9:59 PM - 11:29 PM
7:37 AM - 9:07 AM

Action Rating: 4 out of 5

Sunday, July 27, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 70.8°F
Average Humidity: 85%
Chance of Rain: 0%
Wind: 7.8 mph
UV Index: 0.1

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: 6:13 AM
Sun Transit: 1:44 PM
Sunset: 9:14 PM
Daylight: 15 hrs 1 mins
Moonrise: 9:21 AM
Moon Transit: 4:10 PM
Moonset: 10:46 PM
Moon Phase: New
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

4:05 AM - 6:35 AM
3:40 PM - 6:10 PM

Minor Periods

10:16 PM - 11:46 PM
8:51 AM - 10:21 AM

Action Rating: 4 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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