Language selection

Weather shortcuts

Western Lake Ontario


Marine Forecast

Issued 10:30 AM EDT 26 May 2024

Today Tonight and Monday.

Strong wind warning in effect.

Wind light becoming east 10 knots this afternoon then increasing to east 15 early this evening. Wind increasing to southeast 15 to 20 near midnight then becoming south 15 early Monday morning. Wind increasing to southwest 20 near noon Monday then diminishing to west 15 Monday evening.

Showers overnight and Monday with a risk of thunderstorms. Fog patches dissipating near noon.


Issued 10:30 AM EDT 26 May 2024
Today Tonight and Monday. Waves 0.5 metres or less building to 0.5 to 1 this evening and to 1 to 1.5 Monday afternoon.

Extended Forecast

Issued 03:00 AM EDT 26 May 2024
Tuesday Wind southwest 20 knots veering to northwest 15 in the afternoon.
Wednesday Wind light.
Thursday Wind light.

Stay connected


Weather Conditions

Skip Image

Zoom-in to make a selection

Map of Great Lakes - Lake Huron 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
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 (In effect)

Strong wind warning in effect

Western Lake Ontario

Issued 4:06 PM EDT 26 May 2024

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.


Technical Marine Synopsis

Issued 10:30 AM EDT 26 May 2024 Today Tonight and Monday At 10:30 a.m. EDT today low 1001 mb located over eastern Manitoba.
By 10:30 a.m. EDT Monday low 1005 mb located over northeastern

At 10:30 a.m. EDT today trough from low located on a line
northwest-southeast over northern Ontario.
By 10:30 a.m. EDT Monday trough from low located on a line east-west
over southern Hudson Bay.

By 10:30 a.m. EDT Monday low 997 mb located over Lower Michigan.

Great Lakes - Lake Huron Area

Another Region


New Predicting and Alerting Coastal Flooding Program

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

Date modified: