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

Warnings

 

Oshawa Executive Airport

03:00 PM EDT 17 July 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
17 July 2026
15:00 S 7 Mostly Cloudy 16 101.8 25 43 11 26
14:00 SE 5 Mainly Sunny 16 101.9 23 46 11 25
13:00 SE 7 Sunny 16 102.0 23 39 8 *
12:00 SE 7 Sunny 16 102.0 23 38 8 *
11:00 ESE 5 Sunny 16 102.0 23 38 8 24
10:00 SSE 6 Sunny 16 102.0 23 42 9 24
9:00 E 4 Sunny 16 102.0 22 47 10 23
8:00 ENE 3 Cloudy 16 102.0 20 54 10 21
7:00 calm Mostly Cloudy 16 101.9 18 68 12 *
6:00 N 3 Cloudy 16 101.9 16 78 12 *
5:00 NNW 5 Cloudy 11 101.8 16 84 14 *
4:00 NNE 5 Mist 10 101.8 16 86 14 *
3:00 N 5 Mostly Cloudy 11 101.8 15 90 13 *
2:00 N 3 Clear 16 101.8 16 83 13 *
1:00 N 3 Clear 16 101.7 16 83 13 *
0:00 N 4 Clear 16 101.7 18 75 14 *
16 July 2026
23:00 NNW 5 Clear 16 101.6 20 65 14 24
22:00 NW 5 Clear 16 101.5 21 64 14 24
21:00 NW 7 Clear 16 101.5 23 56 14 26
20:00 NW 9 Sunny 16 101.4 25 46 12 27
19:00 WNW 15 gusts 24 Sunny 11 101.4 27 37 11 28
18:00 NW 18 gusts 24 Haze 8 101.3 27 38 12 30
17:00 WNW 18 Haze 5 101.3 28 38 12 30
16:00 WNW 16 gusts 26 Haze 8 101.3 29 39 13 31
15:00 WNW 15 gusts 20 Haze 10 101.3 29 38 13 31

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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