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Cornwall to Montréal: Past 24 Hour Conditions

Warnings

 

Hamilton Munro Int'l Airport

03:00 AM EDT 15 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)
15 May 2026
3:00 W 4 Partly Cloudy 24 101.5 8 76 4
2:00 WNW 4 Mainly Clear 24 101.6 8 75 4
1:00 WNW 5 Mostly Cloudy 24 101.6 8 80 5
0:00 W 4 Cloudy 24 101.6 9 80 5
14 May 2026
23:00 NW 2 Cloudy 24 101.5 9 77 5
22:00 NNW 6 Mostly Cloudy 24 101.5 10 74 5
21:00 NNW 3 Mostly Cloudy 24 101.4 10 73 5
20:00 N 4 Cloudy 24 101.4 10 72 5
19:00 NNW 10 Cloudy 24 101.4 11 66 5
18:00 N 5 Cloudy 24 101.4 10 68 5
17:00 N 6 Cloudy 24 101.3 10 71 5
16:00 NNW 9 Mostly Cloudy 24 101.3 10 71 5
15:00 NNW 9 Cloudy 24 101.3 10 72 5
14:00 NNW 11 gusts 17 Mostly Cloudy 24 101.2 9 74 5
13:00 NW 9 Cloudy 24 101.2 9 77 5
12:00 NW 11 Cloudy 24 101.2 8 76 4
11:00 NW 8 Cloudy 24 101.2 8 81 5
10:00 NW 9 Cloudy 19 101.2 7 83 5
9:00 WNW 8 Light Rain 16 101.1 6 88 4
8:00 NW 9 gusts 15 Mostly Cloudy 24 101.0 6 85 4
7:00 WNW 8 Light Drizzle 19 101.0 6 87 4
6:00 W 7 Light Drizzle 24 100.9 6 90 4
5:00 W 5 Cloudy 24 100.9 6 86 4
4:00 WSW 6 Cloudy 24 100.9 6 88 4
3:00 W 8 Cloudy 24 100.9 6 86 4

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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