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Eastern Lake Ontario: Past 24 Hour Conditions

Warnings

 

Grenadier Island

09:00 PM EDT 01 July 2025
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) Humidex
01 July 2025
21:00 N/A N/A N/A N/A N/A N/A N/A *
20:00 N/A N/A N/A N/A N/A N/A N/A *
19:00 N/A N/A N/A N/A N/A N/A N/A *
18:00 N/A N/A N/A N/A N/A N/A N/A *
17:00 N/A N/A N/A N/A N/A N/A N/A *
16:00 N/A N/A N/A N/A N/A N/A N/A *
15:00 N/A N/A N/A N/A N/A N/A N/A *
14:00 N/A N/A N/A N/A N/A N/A N/A *
13:00 N/A N/A N/A N/A N/A N/A N/A *
12:00 N/A N/A N/A N/A N/A N/A N/A *
11:00 N/A N/A N/A N/A N/A N/A N/A *
10:00 N/A N/A N/A N/A N/A N/A N/A *
9:00 N/A N/A N/A N/A N/A N/A N/A *
8:00 N/A N/A N/A N/A N/A N/A N/A *
7:00 WSW 3 N/A N/A 100.6 22 98 21 30
6:00 WSW 3 N/A N/A 100.6 22 98 21 30
5:00 SW 3 N/A N/A 100.6 22 98 21 30
4:00 SSW 2 N/A N/A 100.6 21 98 21 30
3:00 SSW 2 N/A N/A 100.6 21 98 21 30
2:00 SSW 4 N/A N/A 100.7 21 98 21 30
1:00 SSW 2 N/A N/A 100.8 21 98 21 29
0:00 SSW 2 N/A N/A 100.9 21 97 20 29
30 June 2025
23:00 S 5 N/A N/A 101.0 23 81 20 30
22:00 WSW 3 N/A N/A 100.9 24 78 20 31
21:00 calm N/A N/A 100.9 25 71 19 32

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

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