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

Warnings

 

Sarnia Chris Hadfield Airport

05:00 PM EDT 20 April 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) Wind Chill
20 April 2026
17:00 N 6 Sunny 16 102.8 4 51 -5 *
16:00 NNE 7 Sunny 16 102.9 4 50 -6 *
15:00 NW 7 Sunny 16 102.9 3 54 -5 *
14:00 NE 4 Sunny 16 102.9 2 54 -7 *
13:00 NNE 7 Sunny 16 103.0 2 55 -6 *
12:00 NW 8 Partly Cloudy 16 103.0 1 61 -6 *
11:00 NNW 10 Partly Cloudy 16 103.0 1 60 -6 *
10:00 NW 7 Mainly Sunny 16 102.9 -1 63 -7 -5
9:00 NW 8 Mostly Cloudy 16 102.9 -1 66 -6 -5
8:00 N 8 Mostly Cloudy 16 102.8 -1 65 -7 -5
7:00 N 11 Cloudy 16 102.7 -1 64 -7 -7
6:00 N 12 Cloudy 16 102.6 -1 68 -6 -7
5:00 N 6 Cloudy 16 102.5 -1 76 -4 -4
4:00 NW 9 gusts 15 Mainly Clear 16 102.5 -1 69 -6 -6
3:00 NNE 11 Cloudy 16 102.4 0 79 -3 -6
2:00 N 5 Mainly Clear 16 102.4 -1 79 -4 -4
1:00 N 6 Clear 16 102.4 -1 73 -5 -5
0:00 NNE 10 Clear 16 102.3 -1 72 -5 -6
19 April 2026
23:00 NNE 11 gusts 17 Clear 16 102.3 0 72 -5 -6
22:00 NNE 11 gusts 16 Mostly Cloudy 16 102.2 0 79 -3 *
21:00 NNE 13 gusts 19 Light Snow 6 102.1 0 92 -1 *
20:00 NNE 8 Light Snow 10 102.0 1 95 0 *
19:00 NE 10 Light Rain 8 101.9 1 97 1 *
18:00 N 11 Light Rain 16 101.9 2 95 1 *
17:00 WNW 16 gusts 22 Cloudy 16 101.8 5 67 -1 *

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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