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Western Lake Ontario: Past 24 Hour Conditions

Warnings

 

Wiarton Airport

03:00 AM EDT 21 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)
21 May 2026
3:00 NNE 9 Clear 16 102.7 6 73 1
2:00 NW 4 Partly Cloudy 24 102.7 5 85 2
1:00 WSW 2 Partly Cloudy 24 102.6 5 83 2
0:00 NW 2 Clear 24 102.6 5 83 2
20 May 2026
23:00 WNW 4 Mainly Clear 24 102.6 5 80 2
22:00 W 3 Mainly Clear 24 102.6 5 78 2
21:00 WSW 4 Mainly Clear 24 102.5 6 72 2
20:00 WNW 4 Mainly Sunny 24 102.4 8 62 1
19:00 WNW 8 Partly Cloudy 24 102.4 9 58 1
18:00 WNW 8 Partly Cloudy 24 102.4 9 61 2
17:00 W 8 Partly Cloudy 24 102.4 10 61 3
16:00 WNW 9 Partly Cloudy 24 102.4 10 63 3
15:00 WSW 8 Mostly Cloudy 24 102.4 9 70 4
14:00 W 9 Mostly Cloudy 24 102.4 8 69 3
13:00 W 9 gusts 17 Mostly Cloudy 24 102.3 7 71 3
12:00 WNW 7 gusts 16 Mostly Cloudy 24 102.3 8 68 2
11:00 WNW 9 gusts 17 Mostly Cloudy 24 102.2 7 65 1
10:00 W 12 gusts 20 Partly Cloudy 24 102.2 7 63 0
9:00 WNW 15 gusts 23 Mainly Sunny 24 102.1 8 59 0
8:00 WNW 10 gusts 22 Mainly Sunny 24 102.0 7 62 1
7:00 WNW 9 gusts 16 Mainly Sunny 24 102.0 7 65 1
6:00 WNW 9 gusts 17 Partly Cloudy 24 101.9 6 69 1
5:00 WNW 9 gusts 19 Mostly Cloudy 24 101.8 7 67 1
4:00 WNW 11 gusts 18 Cloudy 24 101.8 7 75 3
3:00 W 12 gusts 17 Cloudy 24 101.7 7 79 3

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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