Language selection

Government of Canada / Gouvernement du Canada

Search

Weather shortcuts

Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 07 March 2026

Today Tonight and Sunday.

Wind southwest 15 knots increasing to southwest 20 this morning then veering to west 20 this evening. Wind diminishing to west 15 overnight then backing to southwest 15 Sunday morning. Wind veering to west 15 Sunday evening.

Scattered showers ending Sunday morning. Risk of thunderstorms today. Fog patches dissipating this evening.

Waves

Issued 03:00 AM EST 07 March 2026
Today Tonight and Sunday. Mainly ice covered.

Extended Forecast

Issued 03:00 AM EST 07 March 2026
Monday Wind southwest 20 knots diminishing to light late in the day.
Tuesday Wind light becoming southwest 15 knots.
Wednesday Wind light increasing to north 20 knots.

Stay connected

ATOM

List of Official Text Forecasts
Resources

Weather Conditions

Skip Image

Zoom-in to make a selection

Map of Great Lakes - Lake Huron marine weather areas Wiarton Airport Western Islands Cove Island Goderich Lake Simcoe Regional Airport Vineland Station Parry Sound Harbour Sarnia Chris Hadfield Airport Tobermory Muskoka Airport Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Lagoon City Southeast Shoal Burlington Lift Bridge Welland-Pelham Windsor Airport Port Colborne Erieau Peterborough Municipal Airport CFB Trenton Toronto City Centre Airport Point Petre Oshawa Executive Airport Hamilton Munro Int'l Airport Point Pelee Cobourg Port Colborne - 45142 North Channel - 45154 Ajax - 45159 Lake Nipissing - 45152 Sault Ste. Marie Airport Killarney Lake Simcoe - 45151 Greater Sudbury Airport South Lake Huron - 45149 Lake St Clair - 45147 North Bay Airport South Georgian Bay - 45143 Gore Bay-Manitoulin Airport Grimsby - 45139 Georgian Bay - 45137 Great Duck Island Collingwood Kingston Airport Grenadier Island Brockville Prince Edward Point - 45135 Port Stanley - 45132
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 16 May 2025 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EST 7 March 2026 Today Tonight and Sunday At 3:00 a.m. EST today trough located from Whitefish Bay to Iowa.
By 3:00 a.m. EDT Sunday trough located on a line northeast-southwest
over the St. Lawrence River.

At 3:00 a.m. EST today ridge located on a line northeast-southwest
over northwestern Ontario.
By 3:30 a.m. EDT Sunday ridge located on a line northeast-southwest
over northeastern Ontario.

By 3:00 a.m. EDT Sunday trough located on a line north-south over
western Lake Superior.

Great Lakes - Lake Huron Area

Another Region

Marine Weather for Canada

Weather shortcuts


How to use
  • Add to shortcuts
    • Go to the desired page on the site, open the Weather shortcuts menu and click on the "Add to shortcuts" button
    • Page name will display in the "Add this page" window, the name can be changed by highlighting the text and entering the desired name
    • Click on the "Save" button to add the link to the list
    • Click on the "X" button to close the panel
  • Delete a link
    • Click on the "Organize shortcuts" button
    • Select the link to delete
    • Click on the "Delete" button to remove the link from the list
    • Click on the "Close" button to save the change
  • Move a link up/down the list
    • Click on the "Organize shortcuts" button
    • Click and hold the link and move to new location in the list
    • Click on the "Close" button to save the change
  • Rename a link
    • Click on the "Organize shortcuts" button
    • Select the link to rename
    • Click on the "Rename" button and change the link name
    • Click the enter or tab key
    • Click on the "Close" button to save the change
  • Keyboard navigation
    • Use the Tab key to move to a button or link
    • Use the Enter key to click on buttons or links
    • Organize shortcuts navigation
      • Use the ↑ Up key to select the link above. If none are selected, it will select the first link.
      • Use the ↓ Down key to select the link below. If none are selected, it will select the last link.
      • Use the Page Up key to move a selection up in the list.
      • Use the Page Down key to move a selection down in the list.
  • Restore default list

    Warning: Clicking on the button below will remove all your customized links.

Customized Weather shortcuts

Save your customized list as a bookmark.

Copy/paste or click on the link below then when the page displays, you can bookmark the page using the web browser. Bookmarking your customized list will allow you to access it even if the local storage on your device is erased.

Features

New: Colour-coded weather alerts

Learn more about weather alerting in Canada

Feedbackabout this web site
Date modified: