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

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Grenadier Island

12:00 AM EDT 23 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)
23 May 2026
0:00 NNE 3 N/A N/A 102.8 13 48 2
22 May 2026
23:00 NNE 2 N/A N/A 102.8 14 42 1
22:00 NNE 2 N/A N/A 102.8 14 43 1
21:00 NE 2 N/A N/A 102.7 15 40 1
20:00 NNE 4 N/A N/A 102.7 17 34 1
19:00 NE 4 N/A N/A 102.7 19 27 -1
18:00 NE 3 N/A N/A 102.7 19 27 -1
17:00 NNE 2 N/A N/A 102.7 20 27 0
16:00 NE 6 N/A N/A 102.7 19 25 -1
15:00 NE 6 N/A N/A 102.8 18 24 -3
14:00 N 4 N/A N/A 102.9 18 26 -2
13:00 NE 4 N/A N/A 102.9 18 30 0
12:00 ENE 5 N/A N/A 103.0 16 33 0
11:00 NE 4 N/A N/A 103.0 15 35 -1
10:00 ENE 4 N/A N/A 103.1 14 35 -1
9:00 SE 3 N/A N/A 103.1 13 48 2
8:00 ENE 3 N/A N/A 103.1 10 60 3
7:00 NE 2 N/A N/A 103.1 8 65 2
6:00 NE 2 N/A N/A 103.0 7 78 3
5:00 NNE 2 N/A N/A 103.0 7 77 3
4:00 NNE 1 N/A N/A 102.9 7 75 3
3:00 NNE 2 N/A N/A 102.9 7 77 4
2:00 NNE 2 N/A N/A 102.9 8 76 4
1:00 NNW 1 N/A N/A 102.9 8 75 4
0:00 NNE 2 N/A N/A 102.8 9 59 2

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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