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Lake Simcoe: Past 24 Hour Conditions

Warnings

 

Oshawa Executive Airport

12:00 PM EDT 01 August 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
01 August 2026
12:00 SE 4 Mostly Cloudy 16 101.2 26 59 17 31
11:00 SE 4 Mostly Cloudy 16 101.2 25 64 18 31
10:00 S 4 Mostly Cloudy 16 101.2 24 69 18 30
9:00 calm Mostly Cloudy 16 101.2 22 75 18 28
8:00 E 4 Mostly Cloudy 16 101.2 21 81 18 27
7:00 NW 2 Cloudy 16 101.2 21 82 17 26
6:00 ENE 2 Mostly Cloudy 16 101.2 20 78 16 25
5:00 calm Cloudy 16 101.2 20 80 16 *
4:00 E 3 Cloudy 16 101.2 20 74 15 24
3:00 calm Cloudy 16 101.2 20 73 15 25
2:00 calm Cloudy 16 101.3 20 73 15 25
1:00 ENE 2 Cloudy 16 101.3 21 65 14 25
0:00 ESE 3 Partly Cloudy 16 101.3 21 63 14 24
31 July 2026
23:00 SSE 3 Cloudy 16 101.3 22 59 14 25
22:00 calm Mostly Cloudy 16 101.3 22 57 13 24
21:00 calm Haze 10 101.3 23 44 10 24
20:00 S 3 Sunny 16 101.3 26 30 7 *
19:00 SSW 4 Sunny 16 101.3 28 28 7 *
18:00 S 5 Sunny 15 101.3 28 27 8 29
17:00 S 6 Sunny 16 101.4 28 34 11 30
16:00 SSW 9 Sunny 16 101.4 28 32 10 29
15:00 S 10 Mainly Sunny 16 101.5 27 35 11 29
14:00 SSW 9 Mainly Sunny 16 101.5 27 39 12 29
13:00 SSW 9 Sunny 16 101.5 27 43 13 29
12:00 SSW 9 Sunny 16 101.5 27 44 14 30

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 Harrow AAFC Hamilton Munro Int'l Airport CFB Trenton Erieau Toronto City Centre Airport Point Pelee Peterborough Municipal Airport Burlington Lift Bridge Point Petre Cobourg Oshawa Executive Airport South Lake Huron - 45149 Port Colborne Brockville Gore Bay-Manitoulin Airport North Bay Airport Greater Sudbury Airport Killarney Sault Ste. Marie Airport Ajax - 45159 North Channel - 45154 Lake Nipissing - 45152 Lake Simcoe - 45151 Windsor Airport Lake St Clair - 45147 South Georgian Bay - 45143 Port Colborne - 45142 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Welland-Pelham Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Western Islands Sarnia Chris Hadfield Airport Vineland Station Southeast Shoal St. Catharines / Niagara District Airport Goderich Port Weller Long Point Tobermory
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