Language selection

Weather shortcuts

Lake St. Clair

Forecast

Marine Forecast

Issued 06:43 AM EDT 07 October 2024

Today Tonight and Tuesday.

Wind northwest 15 knots diminishing to northwest 10 near noon then increasing to northwest 15 this evening. Wind diminishing to northwest 10 Tuesday morning.

Waves

Issued 03:00 AM EDT 07 October 2024
Today Tonight and Tuesday. Waves 0.5 to 1 metre subsiding to 0.5 or less this morning.

Extended Forecast

Issued 03:00 AM EDT 07 October 2024
Wednesday Wind light becoming north 15 knots in the afternoon.
Thursday Wind light.
Friday Wind southwest 15 knots.

Stay connected

ATOM

Weather Conditions

Skip Image

Zoom-in to make a selection

Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas N Huron - 45003 W Erie - 45005 S Huron - 45008 Lake Ontario - 45012 Port Stanley - 45132 Prince Edward Point - 45135 Georgian Bay - 45137 Grimsby - 45139 Port Colborne - 45142 South Georgian Bay - 45143 Lake St Clair - 45147 South Lake Huron - 45149 Lake Simcoe - 45151 Lake Nipissing - 45152 North Channel - 45154 Ajax - 45159 Sault Ste. Marie Airport Killarney Greater Sudbury Airport North Bay Airport Gore Bay-Manitoulin Airport Great Duck Island Brockville Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Western Islands Cove Island Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Port Colborne Erieau Point Pelee Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport
Legend:
buoy Buoy
land station Land Station
Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 27 April 2024 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 7 October 2024 Today Tonight and Tuesday At 3:00 a.m. EDT today departing trough located on a line
northwest-southeast over the Ontario - Quebec border.

At 3:00 a.m. EDT today low 997 mb located over James Bay.
By 3:00 a.m. EDT Tuesday low 995 mb located over southeastern
Hudson Bay.

At 3:00 a.m. EDT today ridge located on a line northwest-southeast
over South Dakota.
By 3:00 a.m. EDT Tuesday ridge located on a line north-south
over Minnesota.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Features

New Predicting and Alerting Coastal Flooding Program

Find out about coastal flooding coverage, forecasts and warnings in your region

Date modified: