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

Warnings

 

Port Weller

11:00 PM EDT 18 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
18 July 2026
23:00 NW 19 N/A N/A 100.9 22 80 18 28
22:00 NW 23 N/A N/A 100.8 22 76 18 28
21:00 WNW 15 N/A N/A 100.7 22 86 20 29
20:00 WNW 19 N/A N/A 100.5 23 82 20 30
19:00 WNW 22 gusts 29 N/A N/A 100.4 24 80 20 31
18:00 W 16 N/A N/A 100.3 24 84 21 33
17:00 W 18 N/A N/A 100.3 24 92 23 34
16:00 W 8 N/A N/A 100.3 23 95 22 33
15:00 SSE 4 N/A N/A 100.2 22 94 21 31
14:00 ENE 12 N/A N/A 100.2 24 84 21 32
13:00 E 6 N/A N/A 100.3 24 83 21 32
12:00 NNW 2 N/A N/A 100.5 24 96 23 34
11:00 NNW 8 N/A N/A 100.6 25 87 22 34
10:00 SSW 9 gusts 15 N/A N/A 100.6 27 78 23 37
9:00 SSW 8 N/A N/A 100.7 26 81 22 35
8:00 SW 9 N/A N/A 100.7 24 82 21 33
7:00 SSW 8 N/A N/A 100.8 24 76 20 32
6:00 SSW 10 N/A N/A 100.9 24 71 19 30
5:00 S 10 N/A N/A 100.9 24 71 18 30
4:00 SSE 5 N/A N/A 101.0 22 82 19 28
3:00 SSE 6 N/A N/A 101.1 22 79 18 28
2:00 SE 4 N/A N/A 101.2 22 78 18 29
1:00 S 1 N/A N/A 101.3 23 67 16 27
0:00 S 7 N/A N/A 101.3 23 61 15 27
17 July 2026
23:00 S 8 N/A N/A 101.4 23 59 15 27

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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