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

Wed
H: 4°C
L: 2°C

Thu
H: 6°C
L: -3°C

Fri
H: 3°C
L: -2°C

Sat
H: 1°C
L: -3°C

Sun
H: 1°C
L: -2°C
Air Quality
Nitrogen Dioxide: 13.35 μg/m3
Sulphur Dioxide: 5.35 μg/m3
Ozone: 49 μg/m3
Astronomical
Sun Transit: 1:28 PM
Sunset: 7:20 PM
Daylight: 11 hrs 43 mins
Moon Transit: 7:24 AM
Moonset: 11:29 AM
Moon Phase: Last Quarter
Moon Illumination: 36.0%
Best Times for Fishing or Hunting
Major Periods
6:54 AM - 9:24 AM8:46 PM - 11:16 PM
Minor Periods
10:59 AM - 12:29 AM2:47 AM - 4:17 AM
Action Rating: 2 out of 5
yellow warning - rainfall - 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: Tue March 10, 2026, 1:02 PM
Expires: Wed March 11, 2026, 5:02 AM
Rain, heavy at times is expected. The saturated or frozen ground will have little ability to absorb this rainfall. What: Rainfall amounts of 20 to 40 mm. Locally higher amounts are possible in areas that receive thunderstorms. When: Beginning tonight and lasting through Wednesday. Additional information: A series of low pressure systems will lead to significant rainfall across parts of southern Ontario. For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Visit Ontario.ca/floods for the latest details. ### Water will likely pool on roads and in low-lying areas. 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.
Don't drive through flooded roadways. Avoid low-lying areas. Watch for washouts near rivers, creeks and culverts.
Weather Forecast
Air Quality
Nitrogen Dioxide: 23.07 μg/m3
Sulphur Dioxide: 5.48 μg/m3
Ozone: 34.4 μg/m3
Astronomical
Sun Transit: 1:28 PM
Sunset: 7:20 PM
Daylight: 11 hrs 43 mins
Moon Transit: 7:24 AM
Moonset: 11:29 AM
Moon Phase: Last Quarter
Moon Illumination: 36.0%
Best Times for Fishing or Hunting
Major Periods
6:54 AM - 9:24 AM8:46 PM - 11:16 PM
Minor Periods
10:59 AM - 12:29 AM2:47 AM - 4:17 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 8.28 μg/m3
Sulphur Dioxide: 3.37 μg/m3
Ozone: 80.04 μg/m3
Astronomical
Sun Transit: 12:00 AM
Sunset: 7:21 PM
Daylight: 11 hrs 46 mins
Moon Transit: 8:16 AM
Moonset: 12:24 AM
Moon Phase: Last Quarter
Moon Illumination: 25.6%
Best Times for Fishing or Hunting
Major Periods
7:46 AM - 10:16 AM12:00 AM - 12:00 AM
Minor Periods
11:54 AM - 1:24 PM3:40 AM - 5:10 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 13.07 μg/m3
Sulphur Dioxide: 5.19 μg/m3
Ozone: 74.4 μg/m3
Astronomical
Sun Transit: 12:00 AM
Sunset: 7:22 PM
Daylight: 11 hrs 49 mins
Moon Transit: 9:07 AM
Moonset: 1:26 PM
Moon Phase: Waning Crescent
Moon Illumination: 16.4%
Best Times for Fishing or Hunting
Major Periods
8:37 AM - 11:07 AM12:00 AM - 12:00 AM
Minor Periods
12:56 AM - 2:26 PM4:24 AM - 5:54 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.64 μg/m3
Sulphur Dioxide: 2.2 μg/m3
Ozone: 92.54 μg/m3
Astronomical
Sun Transit: 12:00 AM
Sunset: 7:23 PM
Daylight: 11 hrs 52 mins
Moon Transit: 9:58 AM
Moonset: 2:33 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:28 AM - 11:58 AM
Minor Periods
2:03 PM - 3:33 PM5:00 AM - 6:30 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 12:00 AM
Sunset: 7:24 PM
Daylight: 11 hrs 54 mins
Moon Transit: 10:47 AM
Moonset: 3:43 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.6%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM10:17 AM - 12:47 AM
Minor Periods
3:13 PM - 4:43 PM5:30 AM - 7:00 AM
Action Rating: 3 out of 5
