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

Warnings

 

Hamilton Munro Int'l Airport

07:00 PM EDT 20 May 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
20 May 2026
19:00 WNW 11 Mostly Cloudy 24 102.2 13 48 2 *
18:00 WNW 12 Mostly Cloudy 24 102.2 14 48 3 *
17:00 WNW 5 gusts 15 Mostly Cloudy 24 102.1 15 47 4 *
16:00 WNW 7 Mostly Cloudy 24 102.1 15 49 4 *
15:00 WNW 10 Mostly Cloudy 24 102.1 15 48 4 *
14:00 WNW 10 gusts 16 Mostly Cloudy 24 102.1 15 51 5 *
13:00 W 12 gusts 18 Mostly Cloudy 24 102.1 15 55 6 *
12:00 WNW 10 gusts 17 Mostly Cloudy 24 102.1 15 55 6 *
11:00 W 12 Partly Cloudy 24 102.1 15 50 5 *
10:00 WNW 9 Mostly Cloudy 24 102.1 11 59 4 *
9:00 WNW 6 Mostly Cloudy 24 102.0 10 67 4 *
8:00 NW 8 gusts 15 Mostly Cloudy 24 102.0 11 67 5 *
7:00 WNW 6 Mostly Cloudy 24 101.9 11 74 6 *
6:00 NW 11 Mostly Cloudy 24 101.8 11 74 7 *
5:00 NW 8 Mostly Cloudy 19 101.7 12 74 8 *
4:00 WNW 9 gusts 20 Light Rain 16 101.6 13 81 10 *
3:00 WNW 12 gusts 19 Mostly Cloudy 13 101.4 19 93 17 *
2:00 SW 10 gusts 15 Light Rain 10 101.4 19 93 18 *
1:00 SSW 13 gusts 18 Mostly Cloudy 19 101.4 19 92 18 *
0:00 SSW 10 gusts 15 Mostly Cloudy 21 101.4 19 95 19 *
19 May 2026
23:00 SW 10 Cloudy 21 101.3 20 93 19 *
22:00 SW 9 Mostly Cloudy 24 101.3 20 92 19 *
21:00 SW 12 Mostly Cloudy 24 101.2 20 89 18 *
20:00 SW 13 gusts 24 Light Rainshower 19 101.3 19 89 18 *
19:00 SSW 13 gusts 21 Thunderstorm 24 101.1 27 64 19 34

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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