Water Temperature of Lake Ontario in Grimsby, Ontario
Current Water Temperature
Measurement Time: Friday, December 5, 2025, 1:00 PM EST
Temperature Locations
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Local Points of Interest
Hamilton, ON; Toronto, ONStation Name: West Lake Ontario - Grimsby
Station Type: Buoy
Data Source: National Data Buoy Center
Elevation Above Sea Level: 73 meters
Nearest Address:
Grimsby, ON
Niagara Regional District County
GPS Coordinates: 43.25, -79.53
Nearby Water Temperatures
Eighteenmile Creek, Burt, NY (66.3 km)Buffalo River, Buffalo, NY (66.4 km)
Erie Canal, Lockport, NY (68.7 km)
Oak Orchard Creek, Medina, NY (93.1 km)
Oak Orchard Creek, Kenyonville, NY (98.9 km)
Cattaraugus Creek, Gowanda, NY (100.0 km)
Johnson Creek, Kuckville, NY (103.1 km)
Oak Orchard Creek, Kent, NY (108.8 km)
Sandy Creek, North Hamlin, NY (131.1 km)
Allegheny River, Salamanca, NY (138.7 km)
Walnut Creek, Erie, PA (142.9 km)
Northrup Creek, North Greece, NY (144.8 km)
Erie Canal, Rochester, NY (153.0 km)
Genesee River, Rochester, NY (155.6 km)
Allen Creek, Brighton, NY (162.9 km)
Weather for Grimsby, Ontario
Current Weather

Five Day Weather Forecast

Fri
H: 8°C
L: 0°C

Sat
H: 0°C
L: -2°C

Sun
H: 1°C
L: -1°C

Mon
H: -0°C
L: -7°C

Tue
H: -5°C
L: -11°C
Air Quality
Nitrogen Dioxide: 8.65 μg/m3
Sulphur Dioxide: 2.95 μg/m3
Ozone: 53 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 5:56 PM
Daylight: 10 hrs 47 mins
Moon Transit: 3:01 PM
Moonset: 9:53 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%
Best Times for Fishing or Hunting
Major Periods
3:34 AM - 6:04 AM2:31 PM - 5:01 PM
Minor Periods
9:23 PM - 10:53 PM7:55 AM - 9:25 AM
Action Rating: 2 out of 5
yellow advisory - fog - in effect
Service Notice – February 2026: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2026, changes are expected to include... 1) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard is tentatively set for Spring 2026 deployment. Data changes will appear in CAP following this deployment and 2) 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 – février 2026: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2026, il y aura des changements incluant... 1) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique devrait être déployée provisoirement au printemps 2026. Des changements de données apparaîtront dans le PAC à la suite de ce déploiement et 2) 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: Thu February 19, 2026, 8:38 PM
Expires: Fri February 20, 2026, 10:36 AM
Dense fog is expected. What: Near zero visibility in dense fog. When: This evening through overnight into early Friday morning. Additional information: Fog patches have developed in some locales and are expected to become dense with poor visibility. ### Travel will likely be hazardous in some locations. 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.
Be prepared for areas of near-zero visibility and allow extra time to reach your destination. If driving, turn on your lights, slow down and maintain a safe following distance.
yellow advisory - fog - in effect
Service Notice – February 2026: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2026, changes are expected to include... 1) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard is tentatively set for Spring 2026 deployment. Data changes will appear in CAP following this deployment and 2) 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 – février 2026: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2026, il y aura des changements incluant... 1) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique devrait être déployée provisoirement au printemps 2026. Des changements de données apparaîtront dans le PAC à la suite de ce déploiement et 2) 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 February 20, 2026, 12:27 AM
Expires: Fri February 20, 2026, 9:26 AM
Dense fog is expected. What: Near zero visibility in dense fog. When: Overnight into early this morning. Additional information: Dense fog has developed in some locales, and is expected to become widespread with poor visibility. ### Travel will likely be hazardous in some locations. 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.
Be prepared for areas of near-zero visibility and allow extra time to reach your destination. If driving, turn on your lights, slow down and maintain a safe following distance.
yellow advisory - fog - in effect
Service Notice – February 2026: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2026, changes are expected to include... 1) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard is tentatively set for Spring 2026 deployment. Data changes will appear in CAP following this deployment and 2) 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 – février 2026: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2026, il y aura des changements incluant... 1) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique devrait être déployée provisoirement au printemps 2026. Des changements de données apparaîtront dans le PAC à la suite de ce déploiement et 2) 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 February 20, 2026, 5:03 AM
Expires: Fri February 20, 2026, 10:36 AM
Dense fog continues. What: Near zero visibility in dense fog. When: Early this morning. Additional information: Visibility is improving in some locales, and dense fog is expected to lift this morning. ### Travel will likely be hazardous in some locations. 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.
Be prepared for areas of near-zero visibility and allow extra time to reach your destination. If driving, turn on your lights, slow down and maintain a safe following distance.
yellow advisory - fog - ended
Service Notice – February 2026: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2026, changes are expected to include... 1) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard is tentatively set for Spring 2026 deployment. Data changes will appear in CAP following this deployment and 2) 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 – février 2026: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2026, il y aura des changements incluant... 1) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique devrait être déployée provisoirement au printemps 2026. Des changements de données apparaîtront dans le PAC à la suite de ce déploiement et 2) 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 February 20, 2026, 7:57 AM
Expires: Fri February 20, 2026, 8:57 AM
Poor visibility in fog is no longer expected. ###
Weather Forecast
Air Quality
Nitrogen Dioxide: 14.59 μg/m3
Sulphur Dioxide: 3.4 μg/m3
Ozone: 57.44 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 5:56 PM
Daylight: 10 hrs 47 mins
Moon Transit: 3:01 PM
Moonset: 9:53 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%
Best Times for Fishing or Hunting
Major Periods
3:34 AM - 6:04 AM2:31 PM - 5:01 PM
Minor Periods
9:23 PM - 10:53 PM7:55 AM - 9:25 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 14.99 μg/m3
Sulphur Dioxide: 4.32 μg/m3
Ozone: 52.4 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 5:57 PM
Daylight: 10 hrs 50 mins
Moon Transit: 3:50 PM
Moonset: 11:09 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%
Best Times for Fishing or Hunting
Major Periods
4:22 AM - 6:52 AM3:20 PM - 5:50 PM
Minor Periods
12:00 AM - 12:00 AM8:18 AM - 9:48 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 23.6 μg/m3
Sulphur Dioxide: 5.28 μg/m3
Ozone: 49.68 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 5:58 PM
Daylight: 10 hrs 53 mins
Moon Transit: 4:43 PM
Moonset: 12:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 29.1%
Best Times for Fishing or Hunting
Major Periods
5:13 AM - 7:43 AM4:13 PM - 6:43 PM
Minor Periods
8:43 AM - 10:13 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 27.93 μg/m3
Sulphur Dioxide: 9.02 μg/m3
Ozone: 53.28 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 6:00 PM
Daylight: 10 hrs 56 mins
Moon Transit: 5:39 PM
Moonset: 12:28 AM
Moon Phase: First Quarter
Moon Illumination: 39.8%
Best Times for Fishing or Hunting
Major Periods
6:07 AM - 8:37 AM5:09 PM - 7:39 PM
Minor Periods
9:16 AM - 10:46 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 11.26 μg/m3
Sulphur Dioxide: 4.42 μg/m3
Ozone: 67.92 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 6:01 PM
Daylight: 10 hrs 59 mins
Moon Transit: 6:39 PM
Moonset: 1:46 AM
Moon Phase: First Quarter
Moon Illumination: 51.1%
Best Times for Fishing or Hunting
Major Periods
7:06 AM - 9:36 AM6:09 PM - 8:39 PM
Minor Periods
9:57 AM - 11:27 AM1:16 AM - 2:46 AM
Action Rating: 4 out of 5
