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

Warnings

 

Harrow AAFC

04:00 PM EDT 12 July 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) Humidex
12 July 2026
16:00 ESE 3 N/A N/A 102.1 28 48 16 32
15:00 NE 7 N/A N/A 102.2 28 37 12 30
14:00 ENE 5 N/A N/A 102.2 28 47 15 32
13:00 ENE 6 N/A N/A 102.2 27 49 16 32
12:00 ESE 3 N/A N/A 102.2 27 58 18 33
11:00 ENE 4 N/A N/A 102.2 26 59 18 32
10:00 ENE 5 N/A N/A 102.2 25 70 19 31
9:00 ENE 4 N/A N/A 102.2 24 73 19 30
8:00 NE 3 N/A N/A 102.1 22 84 19 28
7:00 NNE 3 N/A N/A 102.1 19 95 18 *
6:00 NNE 2 N/A N/A 102.0 17 97 17 *
5:00 NNE 2 N/A N/A 102.0 18 94 17 *
4:00 NNE 2 N/A N/A 102.0 18 91 17 *
3:00 NNE 2 N/A N/A 102.0 19 88 17 *
2:00 NNE 2 N/A N/A 102.0 19 86 17 *
1:00 NNE 2 N/A N/A 102.0 20 80 17 25
0:00 calm N/A N/A 102.0 20 81 17 26
11 July 2026
23:00 NE 3 N/A N/A 101.9 22 72 17 27
22:00 calm N/A N/A 101.9 22 82 19 29
21:00 calm N/A N/A 101.8 24 69 18 30
20:00 NE 3 N/A N/A 101.7 26 62 18 32
19:00 ENE 2 N/A N/A 101.7 26 58 18 32
18:00 ESE 4 N/A N/A 101.7 27 56 18 33
17:00 ENE 3 N/A N/A 101.7 29 45 16 33
16:00 ENE 5 N/A N/A 101.7 28 44 15 32

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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