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

Warnings

 

Tobermory

04:00 PM EDT 12 May 2026
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) Conditions Visibility(km) Pressure(kPa) Air temp(°C) Relative humidity(%) Dew point(°C) Wind Chill
12 May 2026
16:00 SSE 5 N/A N/A 101.8 8 46 -3 *
15:00 S 4 N/A N/A 101.9 9 42 -3 *
14:00 SSE 9 N/A N/A 102.0 9 38 -4 *
13:00 S 9 N/A N/A 102.1 9 41 -4 *
12:00 SSW 6 N/A N/A 102.2 9 49 -1 *
11:00 SSE 6 N/A N/A 102.3 9 53 -1 *
10:00 S 8 N/A N/A 102.4 7 67 1 *
9:00 S 7 N/A N/A 102.4 6 79 2 *
8:00 SSE 4 N/A N/A 102.4 5 70 -1 *
7:00 ESE 3 N/A N/A 102.4 -1 100 -1 -3
6:00 SE 2 N/A N/A 102.4 -2 100 -2 -3
5:00 calm N/A N/A 102.4 -1 100 -1 *
4:00 NNW 2 N/A N/A 102.5 -1 98 -1 -2
3:00 NW 2 N/A N/A 102.5 -1 100 -1 -2
2:00 WNW 2 N/A N/A 102.5 1 86 -1 *
1:00 NW 2 N/A N/A 102.5 2 78 -2 *
0:00 NW 2 N/A N/A 102.5 1 90 -1 *
11 May 2026
23:00 NW 3 N/A N/A 102.5 2 83 0 *
22:00 WNW 4 N/A N/A 102.5 3 83 0 *
21:00 NW 3 N/A N/A 102.5 4 79 0 *
20:00 WNW 5 N/A N/A 102.5 6 64 -1 *
19:00 WNW 6 N/A N/A 102.5 7 56 -2 *
18:00 NW 9 N/A N/A 102.5 6 63 0 *
17:00 NW 7 N/A N/A 102.5 7 59 0 *
16:00 NW 8 N/A N/A 102.5 7 56 -1 *

If you require additional historical weather information, please visit Climate Data Online

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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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