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Eastern Lake Ontario: Past 24 Hour Conditions

Warnings

 

Grenadier Island

05:00 AM EDT 24 April 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)
24 April 2026
5:00 NNE 4 N/A N/A 101.5 2 55 -6
4:00 NNE 6 N/A N/A 101.5 4 53 -5
3:00 NE 7 gusts 15 N/A N/A 101.4 5 55 -3
2:00 NE 6 N/A N/A 101.4 6 53 -3
1:00 NE 7 N/A N/A 101.3 9 35 -6
0:00 NE 4 N/A N/A 101.3 11 29 -7
23 April 2026
23:00 NE 4 N/A N/A 101.3 11 30 -6
22:00 N 1 N/A N/A 101.3 11 43 -1
21:00 calm N/A N/A 101.3 10 55 1
20:00 SSW 2 N/A N/A 101.3 11 55 2
19:00 W 2 N/A N/A 101.3 13 41 0
18:00 WSW 5 N/A N/A 101.3 15 38 1
17:00 NW 2 N/A N/A 101.3 16 32 -1
16:00 NNW 2 N/A N/A 101.3 17 29 -1
15:00 N 4 N/A N/A 101.4 17 28 -2
14:00 NW 2 N/A N/A 101.5 17 29 -1
13:00 SE 3 N/A N/A 101.5 15 35 0
12:00 ESE 3 N/A N/A 101.6 13 40 0
11:00 ENE 6 N/A N/A 101.7 12 36 -3
10:00 ENE 4 N/A N/A 101.7 11 39 -2
9:00 NE 2 N/A N/A 101.7 9 48 -1
8:00 S 1 N/A N/A 101.7 8 65 1
7:00 N 2 N/A N/A 101.7 6 61 -1
6:00 calm N/A N/A 101.6 5 55 -3
5:00 WNW 1 N/A N/A 101.6 6 58 -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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