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Great Lakes - Lake Erie and Lake Ontario: Past 24 Hour Conditions

Warnings

 

Lake Simcoe - 45151

04:00 PM EDT 17 July 2026Buoy position: 44.5N 79.37W
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)
17 July 2026
16:00 SE 5 gusts 6 0.05 2.5 101.7 24 25
15:00 SE 5 gusts 6 0.05 1.9 101.8 23 26
14:00 ESE 3 gusts 8 0.04 2.4 101.9 23 26
13:00 NNW 2 gusts 6 0.06 1.9 101.9 22 25
12:00 SSE 3 gusts 4 0.06 1.6 102.0 22 24
11:00 SE 3 gusts 5 0.10 1.8 102.0 21 23
10:00 ESE 5 gusts 6 0.10 1.6 102.0 20 23
9:00 N/A N/A N/A N/A N/A N/A
8:00 E 7 gusts 9 0.08 1.6 102.0 20 23
7:00 E 6 gusts 8 0.09 1.7 102.0 20 23
6:00 E 5 gusts 8 0.12 1.8 101.9 20 23
5:00 E 5 gusts 6 0.15 1.9 101.9 20 23
4:00 E 8 gusts 10 0.17 2.0 101.8 20 23
3:00 NE 9 gusts 11 0.14 1.8 101.8 20 23
2:00 NNE 11 gusts 13 0.15 1.8 101.8 21 23
1:00 NNW 9 gusts 10 0.14 1.9 101.8 21 23
0:00 NW 10 gusts 11 0.14 1.7 101.7 21 23
16 July 2026
23:00 NW 10 gusts 11 0.16 1.9 101.7 22 23
22:00 NW 10 gusts 11 0.19 1.9 101.6 23 23
21:00 NW 12 gusts 14 0.27 2.0 101.6 23 23
20:00 NW 15 gusts 19 0.35 2.2 101.5 24 23
19:00 N/A N/A N/A N/A N/A N/A
18:00 NW 18 gusts 22 0.40 2.5 101.4 25 24
17:00 NW 15 gusts 18 0.38 2.2 101.4 25 24
16:00 NW 16 gusts 22 0.41 2.3 101.4 25 23

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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