Water Temperature of Lake Nipissing in West Nipissing, Ontario

Current Water Temperature

12.1°C

Measurement Time: Monday, November 3, 2025, 11:00 PM EST

Temperature Locations

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Local Points of Interest

Parry Sound; Goose Islands

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Lake Nipissing

Station Name: Lake Nipissing
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 630 feet / 192 meters

Nearest Address:
West Nipissing, ON
Nipissing District County

GPS Coordinates: 46.23, -79.72

Nearby Water Temperatures

Georgian Bay, Georgian Bay, ON (126.5 km)
Lake Huron, Alpena, MI (162.1 mi)
Lake Huron, Port Austin, MI (187.8 mi)
Lake Huron, Alpena, MI (191.8 mi)
Thunder Bay River, Alpena, MI (196.4 mi)
Lake Huron, De Tour Village, MI (200.8 mi)
Lake Ontario, Grimsby, ON (331.7 km)
Eighteenmile Creek, Burt, NY (207.4 mi)
Johnson Creek, Kuckville, NY (210.7 mi)
Oak Orchard Creek, Kent, NY (212.4 mi)
Lake Ontario, Rochester, NY (213.0 mi)
St. Marys River, Barbeau, MI (213.6 mi)
Oak Orchard Creek, Kenyonville, NY (213.8 mi)
Lake Huron, Bois Blanc Island, MI (214.3 mi)
St. Marys River, Barbeau, MI (214.5 mi)

Weather for West Nipissing, Ontario

Current Weather

-6.7°C
Light snow
Conditions: Light snow
Humidity: 86%
Feels Like: -14.3°C
Wind: S 14.8 mph
Wind Gusts: 21.2 mph
Pressure: 30.07 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 14 mi
UV Index: 0

Five Day Weather Forecast

Light freezing rain
Mon
H: -5°C
L: -14°C
Moderate snow
Tue
H: -0°C
L: -3°C
Moderate or heavy snow showers
Wed
H: 0°C
L: -4°C
Partly Cloudy
Thu
H: -13°C
L: -16°C
Light freezing rain
Fri
H: -5°C
L: -18°C

Air Quality

AQI: 1 - Good
PM2.5: 3.75 μg/m3
PM10: 3.95 μg/m3
Carbon Monoxide: 147.85 μg/m3
Nitrogen Dioxide: 4.15 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 79 μg/m3

Astronomical

Sunrise: 7:41 AM
Sun Transit: 12:08 AM
Sunset: 4:35 PM
Daylight: 8 hrs 53 mins
Moonrise: 2:10 PM
Moon Transit: 9:18 PM
Moonset: 3:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 87.1%

Best Times for Fishing or Hunting

Major Periods

9:47 AM - 12:17 AM
8:48 PM - 11:18 PM

Minor Periods

1:40 PM - 3:10 PM
2:52 AM - 4:22 AM

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: Mon December 1, 2025, 5:37 AM
Expires: Mon December 1, 2025, 9:37 PM

Snow squalls beginning late this afternoon or this evening. What: Local snowfall amounts of 20 to 40 cm. Reduced visibility at times in heavy snow and in areas of blowing snow. When: Beginning late this afternoon or early this evening and continuing into Tuesday. Additional information: Higher snowfall amounts are possible if snow squalls remain stationary tonight. Snow squalls are expected to weaken Tuesday afternoon. ### Travel may be hazardous. Roads and walkways may be difficult to navigate due to accumulating snow. Road closures are possible. 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.


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 December 1, 2025, 4:29 PM
Expires: Tue December 2, 2025, 8:29 AM

Snow squalls intensifying this evening. What: Local snowfall amounts of 20 to 40 cm. Reduced visibility at times in heavy snow. When: Tonight through Tuesday morning. Additional information: Snow squalls off Georgian Bay will impact the area. Higher snowfall amounts are possible if snow squalls remain stationary. Snow squalls are expected to weaken Tuesday afternoon. ### Visibility will likely be suddenly reduced to near zero at times. Road closures are possible. 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 quickly changing and deteriorating travel conditions.


yellow watch - snow squall - changed

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 December 1, 2025, 4:29 PM
Expires: Mon December 1, 2025, 4:29 PM

###


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: Mon December 1, 2025, 3:28 PM
Expires: Tue December 2, 2025, 7:28 AM

Snow squalls intensifying this evening. What: Local snowfall amounts of 20 to 40 cm. Reduced visibility at times in heavy snow. When: Tonight through Tuesday morning. Additional information: Higher snowfall amounts are possible if snow squalls remain stationary tonight. Snow squalls are expected to weaken Tuesday afternoon. ### Travel may be hazardous. Roads and walkways may be difficult to navigate due to accumulating snow. Road closures are possible. 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.


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: Mon December 1, 2025, 5:37 AM
Expires: Mon December 1, 2025, 9:37 PM

Snow squalls beginning late this afternoon or this evening. What: Local snowfall amounts of 20 to 40 cm. Reduced visibility at times in heavy snow and in areas of blowing snow. When: Beginning late this afternoon or early this evening and continuing into Tuesday. Additional information: Higher snowfall amounts are possible if snow squalls remain stationary tonight. Snow squalls are expected to weaken Tuesday afternoon. ### Travel may be hazardous. Roads and walkways may be difficult to navigate due to accumulating snow. Road closures are possible. 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.


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: Mon December 1, 2025, 5:10 PM
Expires: Tue December 2, 2025, 9:10 AM

Snow squalls intensifying this evening. What: Local snowfall amounts of 10 to 30 cm. Reduced visibility at times in heavy snow. When: Tonight through Tuesday morning. Additional information: Snow squalls are expected to weaken Tuesday afternoon. ### Travel may be hazardous. Roads and walkways may be difficult to navigate due to accumulating snow. Road closures are possible. 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.


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: Mon December 1, 2025, 3:28 PM
Expires: Tue December 2, 2025, 7:28 AM

Snow squalls intensifying this evening. What: Local snowfall amounts of 20 to 40 cm. Reduced visibility at times in heavy snow. When: Tonight through Tuesday morning. Additional information: Higher snowfall amounts are possible if snow squalls remain stationary tonight. Snow squalls are expected to weaken Tuesday afternoon. ### Travel may be hazardous. Roads and walkways may be difficult to navigate due to accumulating snow. Road closures are possible. 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.


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: Mon December 1, 2025, 3:28 PM
Expires: Tue December 2, 2025, 7:28 AM

Snow squalls intensifying this evening. What: Local snowfall amounts of 20 to 40 cm. Reduced visibility at times in heavy snow. When: Tonight through Tuesday morning. Additional information: Higher snowfall amounts are possible if snow squalls remain stationary tonight. Snow squalls are expected to weaken Tuesday afternoon. ### Travel may be hazardous. Roads and walkways may be difficult to navigate due to accumulating snow. Road closures are possible. 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.


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 December 1, 2025, 4:29 PM
Expires: Tue December 2, 2025, 8:29 AM

Snow squalls intensifying this evening. What: Local snowfall amounts of 20 to 40 cm. Reduced visibility at times in heavy snow. When: Tonight through Tuesday morning. Additional information: Snow squalls off Georgian Bay will impact the area. Higher snowfall amounts are possible if snow squalls remain stationary. Snow squalls are expected to weaken Tuesday afternoon. ### Visibility will likely be suddenly reduced to near zero at times. Road closures are possible. 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 quickly changing and deteriorating travel conditions.


Monday, December 1, 2025

Weather Forecast

Conditions: Light freezing rain
Average Temperature: -8.4°C
Average Humidity: 74%
Chance of Rain: 72%
Wind: 15.4 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 1.8 μg/m3
PM10: 1.89 μg/m3
Carbon Monoxide: 147.89 μg/m3
Nitrogen Dioxide: 1.62 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 78.6 μg/m3

Astronomical

Sunrise: 7:41 AM
Sun Transit: 12:08 AM
Sunset: 4:35 PM
Daylight: 8 hrs 53 mins
Moonrise: 2:10 PM
Moon Transit: 9:18 PM
Moonset: 3:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 87.1%

Best Times for Fishing or Hunting

Major Periods

9:47 AM - 12:17 AM
8:48 PM - 11:18 PM

Minor Periods

1:40 PM - 3:10 PM
2:52 AM - 4:22 AM

Action Rating: 2 out of 5

Tuesday, December 2, 2025

Weather Forecast

Conditions: Moderate snow
Average Temperature: -2°C
Average Humidity: 85%
Chance of Rain: 62%
Wind: 13 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 2.39 μg/m3
PM10: 2.51 μg/m3
Carbon Monoxide: 157.81 μg/m3
Nitrogen Dioxide: 3.2 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 79.24 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 12:08 AM
Sunset: 4:34 PM
Daylight: 8 hrs 52 mins
Moonrise: 2:35 PM
Moon Transit: 10:14 PM
Moonset: 4:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.7%

Best Times for Fishing or Hunting

Major Periods

10:41 AM - 1:11 PM
12:00 AM - 12:00 AM

Minor Periods

2:05 PM - 3:35 PM
4:16 AM - 5:46 AM

Action Rating: 2 out of 5

Wednesday, December 3, 2025

Weather Forecast

Conditions: Moderate or heavy snow showers
Average Temperature: -1.9°C
Average Humidity: 87%
Chance of Rain: 78%
Wind: 20.1 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 1.92 μg/m3
PM10: 1.99 μg/m3
Carbon Monoxide: 158.81 μg/m3
Nitrogen Dioxide: 3.21 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 77.12 μg/m3

Astronomical

Sunrise: 7:44 AM
Sun Transit: 12:08 AM
Sunset: 4:34 PM
Daylight: 8 hrs 50 mins
Moonrise: 3:07 PM
Moon Transit: 11:16 PM
Moonset: 6:14 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

11:40 AM - 2:10 PM
12:00 AM - 12:00 AM

Minor Periods

2:37 PM - 4:07 PM
5:44 AM - 7:14 AM

Action Rating: 4 out of 5

Thursday, December 4, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: -13.2°C
Average Humidity: 80%
Chance of Rain: 0%
Wind: 14.3 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 1.72 μg/m3
PM10: 1.94 μg/m3
Carbon Monoxide: 148.77 μg/m3
Nitrogen Dioxide: 1.57 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 75.12 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 12:09 AM
Sunset: 4:34 PM
Daylight: 8 hrs 49 mins
Moonrise: 3:52 PM
Moon Transit: 12:00 AM
Moonset: 7:41 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:45 AM - 3:15 PM

Minor Periods

3:22 PM - 4:52 PM
7:11 AM - 8:41 AM

Action Rating: 4 out of 5

Friday, December 5, 2025

Weather Forecast

Conditions: Light freezing rain
Average Temperature: -12.8°C
Average Humidity: 85%
Chance of Rain: 70%
Wind: 18.6 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 1.66 μg/m3
PM10: 1.88 μg/m3
Carbon Monoxide: 155.03 μg/m3
Nitrogen Dioxide: 2.43 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 75.62 μg/m3

Astronomical

Sunrise: 7:46 AM
Sun Transit: 12:09 AM
Sunset: 4:33 PM
Daylight: 8 hrs 48 mins
Moonrise: 4:52 PM
Moon Transit: 12:22 AM
Moonset: 9:01 AM
Moon Phase: Full
Moon Illumination: 99.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:52 PM - 4:22 PM

Minor Periods

4:22 PM - 5:52 PM
8:31 AM - 10:01 AM

Action Rating: 5 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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