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Georgian Bay: Past 24 Hour Conditions

Warnings

 

CFB Trenton

09:00 PM EDT 21 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
21 July 2026
21:00 WSW 4 Light Rainshower 19 100.0 19 96 18 *
20:00 S 5 Light Rainshower 16 100.0 19 96 18 *
19:00 W 6 gusts 17 Thunderstorm with light rainshowers 16 100.0 20 95 19 *
18:00 SSW 12 gusts 17 Cloudy 24 100.0 21 85 19 28
17:00 WSW 12 Cloudy 24 100.0 23 76 19 30
16:00 SW 9 gusts 15 Cloudy 24 100.0 24 76 20 31
15:00 SW 14 Cloudy 19 100.0 24 75 19 31
14:00 SW 19 gusts 27 Cloudy 19 100.0 23 82 20 31
13:00 S 13 gusts 26 Fog 10 100.0 23 83 20 30
12:00 SSE 2 Thunderstorm with light rainshowers 10 100.1 21 95 20 28
11:00 S 6 Thunderstorm with rainshowers 10 100.3 19 94 18 *
10:00 SW 4 Cloudy 24 100.3 22 83 19 29
9:00 SE 12 gusts 23 Thunderstorm with light rainshowers 13 100.0 20 91 18 *
8:00 S 6 Cloudy 19 100.5 21 77 17 26
7:00 S 5 Cloudy 24 100.5 20 83 17 *
6:00 S 3 Mostly Cloudy 24 100.5 19 88 17 *
5:00 calm Partly Cloudy 24 100.5 18 89 16 *
4:00 NE 2 Clear 24 100.6 16 93 15 *
3:00 calm Mainly Clear 24 100.7 19 85 16 *
2:00 ENE 2 Mostly Cloudy 24 100.8 19 77 14 *
1:00 N 4 Cloudy 24 100.8 19 73 14 *
0:00 S 3 Cloudy 24 100.9 20 67 14 23
20 July 2026
23:00 SW 2 Cloudy 24 101.0 19 72 14 *
22:00 S 5 Cloudy 24 101.0 19 73 15 *
21:00 S 4 Cloudy 24 101.0 20 65 13 23

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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