Water Temperature of Lake Ontario in Grimsby, Ontario
Current Water Temperature
Measurement Time: Friday, December 5, 2025, 1:00 PM EST
Temperature Locations
View Nearby Locations View All Ontario Locations View Locations Near Me
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

Thu
H: -1°C
L: -8°C

Fri
H: 6°C
L: -6°C

Sat
H: 4°C
L: -2°C

Sun
H: -7°C
L: -8°C

Mon
H: -6°C
L: -9°C
Air Quality
Nitrogen Dioxide: 8.15 μg/m3
Sulphur Dioxide: 3.35 μg/m3
Ozone: 70 μg/m3
Astronomical
Sun Transit: 12:30 AM
Sunset: 6:04 PM
Daylight: 11 hrs 4 mins
Moon Transit: 8:44 PM
Moonset: 4:04 AM
Moon Phase: First Quarter
Moon Illumination: 72.9%
Best Times for Fishing or Hunting
Major Periods
9:11 AM - 11:41 AM8:14 PM - 10:44 PM
Minor Periods
11:56 AM - 1:26 PM3:34 AM - 5:04 AM
Action Rating: 2 out of 5
special weather statement 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: Wed February 25, 2026, 4:59 PM
Expires: Wed February 25, 2026, 11:04 PM
Flurries, sometimes heavy, are expected. What: Flurries, at times heavy, could suddenly reduce visibilities. When: Until this evening. Additional information: Snow could accumulate quickly on the roads and make them slippery. Flurries, at times heavy, could give near zero visibilities at times. Travel will likely be difficult due to sudden reduced visibilities in snow. Be prepared for deteriorating travel conditions. Allow extra time for travel. ### 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 – 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: Wed February 25, 2026, 4:35 PM
Expires: Wed February 25, 2026, 11:05 PM
Flurries, sometimes heavy, are expected. What: Flurries, at times heavy, could suddenly reduce visibilities. When: Until this evening. Additional information: Snow could accumulate quickly on the roads and make them slippery. Flurries, at times heavy, could give near zero visibilities at times. Travel will likely be difficult due to sudden reduced visibilities in snow. Be prepared for deteriorating travel conditions. Allow extra time for travel. ### 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 – 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: Wed February 25, 2026, 4:01 PM
Expires: Wed February 25, 2026, 11:08 PM
Flurries, sometimes heavy, are expected. What: Flurries, at times heavy, could suddenly reduce visibilities. When: Until this evening. Additional information: Furries are forecast for the region this afternoon and evening. An accumulation of 2 cm of snow is possible locally. Snow could accumulate quickly on the roads and make them slippery. Flurries, at times heavy, could give near zero visibilities at times. Travel will likely be difficult due to sudden reduced visibilities in snow. Be prepared for deteriorating travel conditions. Allow extra time for travel. ### 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 – 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: Wed February 25, 2026, 2:22 PM
Expires: Wed February 25, 2026, 11:04 PM
Flurries, at times heavy, are expected What : Flurries, at times heavy, could suddenly reduce visibilities. When : This afternoon and evening. Additional information: Flurries are expected over the area this afternoon and evening. Locally, 2 cm of snow accumulation is possible. Snow could accumulate quickly on roads, making them slippery. Flurries, at times heavy, could reduce visibilities to near zero at times. Travel may be difficult due to sudden reduced visibility in the snow. Prepared for deteriorating travel conditions. Allow extra time for travel. ### 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 – 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: Wed February 25, 2026, 2:06 PM
Expires: Wed February 25, 2026, 11:23 PM
Flurries, at times heavy. What : Flurries, at times heavy, could suddenly reduce visibilities. When : This afternoon and evening. Additional information: Flurries off Lake Huron will impact central Ontario and the northern Golden Horseshoe. Locally, 2 cm of snow accumulation is possible. Snow could accumulate quickly on roads, making them slippery. Flurries, at times heavy, could reduce visibilities to near zero at times. Road conditions are expected to be difficult due to sudden reduced visibilities in the snow. Prepared for deteriorating travel conditions. Allow extra time for travel. ### 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
Air Quality
Nitrogen Dioxide: 7.13 μg/m3
Sulphur Dioxide: 3.23 μg/m3
Ozone: 75.84 μg/m3
Astronomical
Sun Transit: 12:30 AM
Sunset: 6:04 PM
Daylight: 11 hrs 4 mins
Moon Transit: 8:44 PM
Moonset: 4:04 AM
Moon Phase: First Quarter
Moon Illumination: 72.9%
Best Times for Fishing or Hunting
Major Periods
9:11 AM - 11:41 AM8:14 PM - 10:44 PM
Minor Periods
11:56 AM - 1:26 PM3:34 AM - 5:04 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 11.21 μg/m3
Sulphur Dioxide: 4.07 μg/m3
Ozone: 73.84 μg/m3
Astronomical
Sun Transit: 12:30 AM
Sunset: 6:05 PM
Daylight: 11 hrs 7 mins
Moon Transit: 9:44 PM
Moonset: 4:56 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.3%
Best Times for Fishing or Hunting
Major Periods
10:12 AM - 12:42 AM9:14 PM - 11:44 PM
Minor Periods
1:10 PM - 2:40 PM4:26 AM - 5:56 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 7.79 μg/m3
Sulphur Dioxide: 3.77 μg/m3
Ozone: 82.88 μg/m3
Astronomical
Sun Transit: 12:30 AM
Sunset: 6:06 PM
Daylight: 11 hrs 10 mins
Moon Transit: 10:39 PM
Moonset: 5:35 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.1%
Best Times for Fishing or Hunting
Major Periods
11:09 AM - 1:39 PM12:00 AM - 12:00 AM
Minor Periods
2:28 PM - 3:58 PM5:05 AM - 6:35 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 8.01 μg/m3
Sulphur Dioxide: 4.49 μg/m3
Ozone: 78.08 μg/m3
Astronomical
Sun Transit: 12:30 AM
Sunset: 6:07 PM
Daylight: 11 hrs 13 mins
Moon Transit: 11:30 PM
Moonset: 6:07 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.8%
Best Times for Fishing or Hunting
Major Periods
12:02 AM - 2:32 PM12:00 AM - 12:00 AM
Minor Periods
3:45 PM - 5:15 PM5:37 AM - 7:07 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 18.35 μg/m3
Sulphur Dioxide: 8.01 μg/m3
Ozone: 66.31 μg/m3
Astronomical
Sun Transit: 12:30 AM
Sunset: 6:09 PM
Daylight: 11 hrs 16 mins
Moon Transit: 12:00 AM
Moonset: 6:32 AM
Moon Phase: Full
Moon Illumination: 99.1%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:51 AM - 3:21 PM
Minor Periods
4:58 PM - 6:28 PM6:02 AM - 7:32 AM
Action Rating: 4 out of 5
