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Eastern Lake Ontario: Past 24 Hour Conditions

Warnings

 

Grimsby - 45139

01:00 PM EDT 10 July 2026Buoy position: 43.27N 79.54W
Disclaimer

This table is a summary of hourly weather conditions for the past 24 hours.
Please note that these observations might not always be representative of weather conditions over their associated marine area.
Date / Time
(EDT)		 Wind(knots) Wave height(m) Wave period(s) Pressure(kPa) Air temp(°C) Water temp(°C)
10 July 2026
13:00 NE 4 gusts 5 0.14 4.3 101.3 22 22
12:00 NNE 5 gusts 6 0.11 2.2 101.2 22 22
11:00 NNE 5 gusts 6 0.12 2.2 101.2 22 21
10:00 NNE 5 gusts 6 0.13 2.3 101.2 22 21
9:00 NNE 5 gusts 6 0.06 2.1 101.2 22 21
8:00 NNE 5 gusts 6 0.05 1.7 101.2 21 21
7:00 NE 5 gusts 5 0.06 1.8 101.1 21 21
6:00 NNE 6 gusts 8 0.07 1.9 101.1 21 21
5:00 N 4 gusts 6 0.02 2.3 101.1 21 21
4:00 NW 3 gusts 3 0.02 2.3 101.0 21 20
3:00 W 3 gusts 4 0.02 2.1 101.0 21 20
2:00 NNW 3 gusts 4 0.02 2.4 101.0 21 21
1:00 SW 2 gusts 3 0.03 2.9 101.0 21 20
0:00 S 5 gusts 6 0.03 3.1 101.0 21 21
09 July 2026
23:00 S 3 gusts 4 0.04 2.2 101.0 22 21
22:00 N 6 gusts 8 0.10 1.8 101.0 22 21
21:00 SSW 9 gusts 11 0.23 2.2 100.8 22 21
20:00 SSW 9 gusts 11 0.08 3.5 100.9 22 21
19:00 SSW 5 gusts 5 0.11 2.6 100.9 22 21
18:00 WSW 5 gusts 11 0.17 2.4 101.0 21 21
17:00 SSW 6 gusts 8 0.44 3.5 101.0 21 21
16:00 NNE 8 gusts 10 0.55 2.7 101.1 20 21
15:00 SSW 11 gusts 15 0.03 1.6 100.8 26 24
14:00 E 6 gusts 8 0.03 3.7 100.9 26 24
13:00 NNW 4 gusts 4 0.03 3.4 100.9 26 24

If you require additional historical weather information please visit Fisheries and Oceans Canada

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas CFB Trenton Port Colborne - 45142 Hamilton Munro Int'l Airport Oshawa Executive Airport Port Stanley - 45132 Lake Nipissing - 45152 Point Petre Georgian Bay - 45137 Toronto City Centre Airport Lake Simcoe - 45151 South Georgian Bay - 45143 Prince Edward Point - 45135 Peterborough Municipal Airport South Lake Huron - 45149 Collingwood Lake St Clair - 45147 Grimsby - 45139 Goderich Lagoon City Kingston Airport Muskoka Airport Parry Sound Harbour Grenadier Island Lake Simcoe Regional Airport Wiarton Airport Brockville Western Islands Cove Island Great Duck Island North Channel - 45154 Sarnia Chris Hadfield Airport Gore Bay-Manitoulin Airport Tobermory Harrow AAFC Long Point North Bay Airport Port Weller St. Catharines / Niagara District Airport Greater Sudbury Airport Southeast Shoal Vineland Station Port Colborne Erieau Cobourg Sault Ste. Marie Airport Windsor Airport Welland-Pelham Killarney Ajax - 45159 Point Pelee Burlington Lift Bridge
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