Water Temperature of Lake Ontario in Grimsby, Ontario

Current Water Temperature

-0.9°C

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, ON

Lake Ontario

Station 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

-0.1°C
Overcast
Overcast
-7.6°C
-0.7°C
61%
W 41 kph
53.2 kph
-7.5°C
-4.1°C
0 mm
0%
2 km
1007 mbar
0.6

Five Day Weather Forecast

Light freezing rain
Sun
H: -0°C
L: -3°C
Cloudy
Mon
H: 1°C
L: -3°C
Patchy rain nearby
Tue
H: 4°C
L: -1°C
Patchy rain nearby
Wed
H: 3°C
L: -4°C
Blowing snow
Thu
H: -6°C
L: -9°C

Air Quality

AQI: 1 - Good
PM2.5: 1.85 μg/m3
PM10: 1.85 μg/m3
Carbon Monoxide: 203.85 μg/m3
Nitrogen Dioxide: 5.05 μg/m3
Sulphur Dioxide: 2.25 μg/m3
Ozone: 74 μg/m3

Astronomical

Sunrise: 7:49 AM
Sun Transit: 12:26 AM
Sunset: 5:04 PM
Daylight: 9 hrs 15 mins
Moonrise: 1:28 AM
Moon Transit: 6:41 AM
Moonset: 11:45 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

6:11 AM - 8:41 AM
7:59 PM - 10:29 PM

Minor Periods

11:15 AM - 12:45 AM
12:58 AM - 2:28 AM

Action Rating: 2 out of 5

special weather statement 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: Sun January 11, 2026, 6:50 AM
Expires: Sun January 11, 2026, 11:02 AM

Bursts of heavy snow early this morning. What: Poor visibility in bursts of heavier snow and local blowing snow. Local snowfall accumulations up to 5 cm. When: Early this morning. Additional information: The main threat from the snow will be poor visibility in bursts of heavy snow and blowing snow. Snowfall accumulations are not expected to be significant. ### 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.


special weather statement ended

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: Sun January 11, 2026, 8:42 AM
Expires: Sun January 11, 2026, 9:42 AM

###


Sunday, January 11, 2026

Weather Forecast

Light freezing rain
-0.1°C
-3°C
-0.9°C
78%
0.35 mm
86%
16%
41 kph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 4.68 μg/m3
PM10: 5.19 μg/m3
Carbon Monoxide: 234.57 μg/m3
Nitrogen Dioxide: 10.69 μg/m3
Sulphur Dioxide: 3.49 μg/m3
Ozone: 57.08 μg/m3

Astronomical

Sunrise: 7:49 AM
Sun Transit: 12:26 AM
Sunset: 5:04 PM
Daylight: 9 hrs 15 mins
Moonrise: 1:28 AM
Moon Transit: 6:41 AM
Moonset: 11:45 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

6:11 AM - 8:41 AM
7:59 PM - 10:29 PM

Minor Periods

11:15 AM - 12:45 AM
12:58 AM - 2:28 AM

Action Rating: 2 out of 5

Monday, January 12, 2026

Weather Forecast

Cloudy
1.2°C
-2.5°C
-0.7°C
74%
0 mm
0%
0%
37.4 kph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 3.83 μg/m3
PM10: 4.13 μg/m3
Carbon Monoxide: 198.49 μg/m3
Nitrogen Dioxide: 7.75 μg/m3
Sulphur Dioxide: 3.07 μg/m3
Ozone: 63.96 μg/m3

Astronomical

Sunrise: 7:48 AM
Sun Transit: 12:26 AM
Sunset: 5:05 PM
Daylight: 9 hrs 16 mins
Moonrise: 2:33 AM
Moon Transit: 7:24 AM
Moonset: 12:09 AM
Moon Phase: Last Quarter
Moon Illumination: 25.0%

Best Times for Fishing or Hunting

Major Periods

6:54 AM - 9:24 AM
8:43 PM - 11:13 PM

Minor Periods

11:39 AM - 1:09 PM
2:03 AM - 3:33 AM

Action Rating: 2 out of 5

Tuesday, January 13, 2026

Weather Forecast

Patchy rain nearby
3.7°C
-0.5°C
1.4°C
83%
2.77 mm
75%
0%
45.4 kph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 11.11 μg/m3
PM10: 12.13 μg/m3
Carbon Monoxide: 222.33 μg/m3
Nitrogen Dioxide: 14.97 μg/m3
Sulphur Dioxide: 5.26 μg/m3
Ozone: 42.96 μg/m3

Astronomical

Sunrise: 7:48 AM
Sun Transit: 12:26 AM
Sunset: 5:06 PM
Daylight: 9 hrs 18 mins
Moonrise: 3:38 AM
Moon Transit: 8:10 AM
Moonset: 12:38 AM
Moon Phase: Waning Crescent
Moon Illumination: 15.9%

Best Times for Fishing or Hunting

Major Periods

7:40 AM - 10:10 AM
12:00 AM - 12:00 AM

Minor Periods

12:08 AM - 1:38 PM
3:08 AM - 4:38 AM

Action Rating: 3 out of 5

Wednesday, January 14, 2026

Weather Forecast

Patchy rain nearby
3.1°C
-4°C
1.8°C
85%
1.48 mm
85%
5%
41.8 kph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 8.55 μg/m3
PM10: 8.89 μg/m3
Carbon Monoxide: 205.62 μg/m3
Nitrogen Dioxide: 14.47 μg/m3
Sulphur Dioxide: 4.29 μg/m3
Ozone: 38.52 μg/m3

Astronomical

Sunrise: 7:48 AM
Sun Transit: 12:27 AM
Sunset: 5:07 PM
Daylight: 9 hrs 19 mins
Moonrise: 4:42 AM
Moon Transit: 9:00 AM
Moonset: 1:13 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.5%

Best Times for Fishing or Hunting

Major Periods

8:30 AM - 11:00 AM
12:00 AM - 12:00 AM

Minor Periods

12:43 AM - 2:13 PM
4:12 AM - 5:42 AM

Action Rating: 2 out of 5

Thursday, January 15, 2026

Weather Forecast

Blowing snow
-6.4°C
-9°C
-7.1°C
74%
0.61 mm
83%
47%
39.6 kph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.14 μg/m3
PM10: 2.23 μg/m3
Carbon Monoxide: 180.77 μg/m3
Nitrogen Dioxide: 6.06 μg/m3
Sulphur Dioxide: 3.05 μg/m3
Ozone: 67.62 μg/m3

Astronomical

Sunrise: 7:47 AM
Sun Transit: 12:27 AM
Sunset: 5:08 PM
Daylight: 9 hrs 21 mins
Moonrise: 5:42 AM
Moon Transit: 9:50 AM
Moonset: 1:57 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:20 AM - 11:50 AM

Minor Periods

1:27 PM - 2:57 PM
5:12 AM - 6:42 AM

Action Rating: 2 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.

Webcams Near Grimsby, ON

Sponsored Content