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Cornwall to Montréal: Past 24 Hour Conditions

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St. Catharines / Niagara District Airport

12:00 AM EDT 23 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)
23 May 2026
0:00 E 8 N/A N/A 102.5 13 49 3
22 May 2026
23:00 E 8 N/A N/A 102.5 13 51 3
22:00 E 11 N/A N/A 102.5 13 48 2
21:00 E 10 Mostly Cloudy 24 102.5 13 48 2
20:00 ENE 10 Mostly Cloudy 24 102.5 14 49 3
19:00 ENE 9 Mostly Cloudy 24 102.5 14 51 4
18:00 ENE 9 Mostly Cloudy 24 102.5 15 49 4
17:00 NE 12 Mostly Cloudy 24 102.5 16 44 3
16:00 NE 12 gusts 20 Mostly Cloudy 24 102.6 15 42 2
15:00 NE 14 gusts 19 Mostly Cloudy 24 102.7 15 44 3
14:00 NE 17 gusts 23 Mostly Cloudy 24 102.7 15 44 3
13:00 ENE 10 gusts 22 Mostly Cloudy 24 102.7 17 44 4
12:00 E 14 gusts 21 Mostly Cloudy 24 102.8 16 44 4
11:00 E 12 gusts 17 Mostly Cloudy 24 102.8 14 45 2
10:00 E 12 Mostly Cloudy 24 102.9 13 50 3
9:00 ENE 8 Mostly Cloudy 24 102.9 11 62 4
8:00 ENE 10 Mostly Cloudy 24 102.9 9 68 4
7:00 ENE 6 Partly Cloudy 24 102.9 7 82 4
6:00 ENE 5 N/A N/A 102.9 5 88 3
5:00 E 4 N/A N/A 102.8 5 90 4
4:00 ENE 5 N/A N/A 102.8 5 91 4
3:00 E 3 N/A N/A 102.8 5 90 4
2:00 ESE 5 N/A N/A 102.8 6 90 5
1:00 ESE 2 N/A N/A 102.8 6 95 5
0:00 NE 2 N/A N/A 102.8 8 93 7

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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