Water Temperature of Lake Superior in Terrace Bay Township, Ontario
Current Water Temperature
Measurement Time: Friday, November 7, 2025, 7:00 PM EST
Temperature Locations
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Local Points of Interest
Patterson Island; Pukaskwa National ParkSponsored Content
Station Name: Slate Island
Station Type: Buoy
Data Source: National Data Buoy Center
Elevation Above Sea Level: 587 feet / 179 meters
Nearest Address:
Terrace Bay Township, ON P0T 2W0
Thunder Bay District County
GPS Coordinates: 48.54, -86.95
Nearby Water Temperatures
Lake Superior, Isle Royale, MI (50.1 mi)Lake Superior, Copper Harbor, MI (68.1 mi)
Washington Creek, Windigo, MI (109.7 mi)
Lake Superior, Calumet, MI (116.6 mi)
Pilgrim River, Houghton, MI (125.0 mi)
Keweenaw Bay, Jacobsville, MI (127.7 mi)
East Branch Salmon Trout River, Powell, MI (128.3 mi)
Salmon Trout River, Champion, MI (128.9 mi)
Grand Portage River, Grand Portage, MN (131.9 mi)
Lake Superior, Marquette, MI (139.2 mi)
Falls River, L'Anse, MI (142.8 mi)
Miners River, Munising, MI (143.1 mi)
Middle Branch Escanaba River, , MI (147.6 mi)
Middle Branch Escanaba River, Humboldt, MI (147.7 mi)
Sturgeon River, Pelkie, MI (148.5 mi)
Weather for Terrace Bay Township, Ontario
Current Weather

Humidity: 81%
Feels Like: -14.4°C
Wind: N 8.3 mph
Wind Gusts: 13.6 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 0
Five Day Weather Forecast

Fri
H: -0°C
L: -9°C

Sat
H: -2°C
L: -11°C

Sun
H: -3°C
L: -6°C

Mon
H: -2°C
L: -4°C

Tue
H: 3°C
L: -5°C
Air Quality
Nitrogen Dioxide: 0.86 μg/m3
Sulphur Dioxide: 0.96 μg/m3
Ozone: 78 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 5:18 PM
Daylight: 9 hrs 34 mins
Moon Transit: 2:10 AM
Moonset: 10:59 AM
Moon Phase: Full
Moon Illumination: 93.4%
Best Times for Fishing or Hunting
Major Periods
1:40 AM - 4:10 AM2:39 PM - 5:09 PM
Minor Periods
5:56 PM - 7:26 PM10:29 AM - 11:59 AM
Action Rating: 4 out of 5
special weather statement in effect
Service Notice – October 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) a new Coastal Flooding Statement has been created and could be issued for the same locations as the Coastal Flooding Warning, 3) more adjustments to the locations used for the coastal flooding alerts, 4) new Public locations around Regina, Moose Jaw and Saskatoon in Saskatchewan, 5) 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 6) 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 – octobre 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) un nouveau bulletin de submersion côtière a été créé et pourra être émis pour les mêmes emplacements que l’avertissement de submersion côtière, 3) d’autres ajustements aux emplacements utilisés pour les alertes d’inondation côtière, 4) de nouveaux emplacements publics autour de Regina, Moose Jaw et Saskatoon, en Saskatchewan, 5) 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 6) 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 November 7, 2025, 5:40 AM
Expires: Fri November 7, 2025, 9:40 PM
Accumulating snow today. What: Total snowfall amounts of 8 to 12 cm. When: Tapering off late this afternoon or early this evening. Additional information: Travel maybe difficult due to accumulating snow and reduced visibility 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.
special weather statement in effect
Service Notice – October 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) a new Coastal Flooding Statement has been created and could be issued for the same locations as the Coastal Flooding Warning, 3) more adjustments to the locations used for the coastal flooding alerts, 4) new Public locations around Regina, Moose Jaw and Saskatoon in Saskatchewan, 5) 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 6) 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 – octobre 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) un nouveau bulletin de submersion côtière a été créé et pourra être émis pour les mêmes emplacements que l’avertissement de submersion côtière, 3) d’autres ajustements aux emplacements utilisés pour les alertes d’inondation côtière, 4) de nouveaux emplacements publics autour de Regina, Moose Jaw et Saskatoon, en Saskatchewan, 5) 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 6) 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 November 7, 2025, 10:31 AM
Expires: Fri November 7, 2025, 11:01 PM
Accumulating snow today. What: Total snowfall amounts of 8 to 12 cm. When: Tapering off late this afternoon or early this evening. Additional information: Travel maybe difficult due to accumulating snow and reduced visibility 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.
special weather statement in effect
Service Notice – October 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) a new Coastal Flooding Statement has been created and could be issued for the same locations as the Coastal Flooding Warning, 3) more adjustments to the locations used for the coastal flooding alerts, 4) new Public locations around Regina, Moose Jaw and Saskatoon in Saskatchewan, 5) 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 6) 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 – octobre 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) un nouveau bulletin de submersion côtière a été créé et pourra être émis pour les mêmes emplacements que l’avertissement de submersion côtière, 3) d’autres ajustements aux emplacements utilisés pour les alertes d’inondation côtière, 4) de nouveaux emplacements publics autour de Regina, Moose Jaw et Saskatoon, en Saskatchewan, 5) 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 6) 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 November 7, 2025, 2:28 PM
Expires: Fri November 7, 2025, 11:01 PM
Accumulating snow today. What: Total snowfall amounts of 8 to 12 cm. When: Tapering off late this afternoon or early this evening. Additional information: Travel maybe difficult due to accumulating snow and reduced visibility 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.
Weather Forecast
Average Temperature: -3.5°C
Average Humidity: 81%
Wind: 22.8 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 1.14 μg/m3
Sulphur Dioxide: 1.04 μg/m3
Ozone: 71.32 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 5:18 PM
Daylight: 9 hrs 34 mins
Moon Transit: 2:10 AM
Moonset: 10:59 AM
Moon Phase: Full
Moon Illumination: 93.4%
Best Times for Fishing or Hunting
Major Periods
1:40 AM - 4:10 AM2:39 PM - 5:09 PM
Minor Periods
5:56 PM - 7:26 PM10:29 AM - 11:59 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: -5.7°C
Average Humidity: 63%
Wind: 11.9 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 0.89 μg/m3
Sulphur Dioxide: 0.96 μg/m3
Ozone: 78.6 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 5:17 PM
Daylight: 9 hrs 31 mins
Moon Transit: 3:17 AM
Moonset: 12:10 AM
Moon Phase: Waning Gibbous
Moon Illumination: 86.7%
Best Times for Fishing or Hunting
Major Periods
2:47 AM - 5:17 AM3:45 PM - 6:15 PM
Minor Periods
7:02 PM - 8:32 PM11:40 AM - 1:10 PM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: -3.9°C
Average Humidity: 57%
Wind: 9.8 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 0.97 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 74.72 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 5:15 PM
Daylight: 9 hrs 28 mins
Moon Transit: 4:22 AM
Moonset: 1:02 PM
Moon Phase: Waning Gibbous
Moon Illumination: 78.1%
Best Times for Fishing or Hunting
Major Periods
3:52 AM - 6:22 AM4:48 PM - 7:18 PM
Minor Periods
8:20 PM - 9:50 PM12:32 AM - 2:02 PM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: -2.8°C
Average Humidity: 72%
Wind: 14.5 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 0.92 μg/m3
Sulphur Dioxide: 0.87 μg/m3
Ozone: 74.36 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 5:14 PM
Daylight: 9 hrs 25 mins
Moon Transit: 5:22 AM
Moonset: 1:39 PM
Moon Phase: Waning Gibbous
Moon Illumination: 68.0%
Best Times for Fishing or Hunting
Major Periods
4:52 AM - 7:22 AM5:46 PM - 8:16 PM
Minor Periods
9:42 PM - 11:12 PM1:09 PM - 2:39 PM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: -0.7°C
Average Humidity: 78%
Wind: 14.5 mph
UV Index: 0.1
Air Quality
Nitrogen Dioxide: 1.07 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 73.62 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 5:13 PM
Daylight: 9 hrs 23 mins
Moon Transit: 6:17 AM
Moonset: 2:05 PM
Moon Phase: Waning Gibbous
Moon Illumination: 57.1%
Best Times for Fishing or Hunting
Major Periods
5:47 AM - 8:17 AM6:38 PM - 9:08 PM
Minor Periods
12:00 AM - 12:00 AM1:35 PM - 3:05 PM
Action Rating: 3 out of 5
