Language selection

Government of Canada / Gouvernement du Canada

Search

Features

Banner for severe thunderstorms and tornadoes alerts

Banner for severe thunderstorms and tornadoes alerts

Weather shortcuts

Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 16 August 2026

Tonight and Monday.

Wind south 15 knots diminishing to variable 10 this evening then becoming northwest 10 early Monday morning. Wind backing to west 10 Monday afternoon.

Scattered showers ending Monday morning with a risk of thunderstorms. Scattered showers Monday afternoon.

Waves

Issued 06:30 PM EDT 16 August 2026
Tonight and Monday. Waves 0.5 metres.

Extended Forecast

Issued 06:30 PM EDT 16 August 2026
Tuesday Wind light becoming southwest 15 knots late in the day.
Wednesday Wind southwest 15 knots.
Thursday Wind light.

Stay connected

ATOM

List of Official Text Forecasts
Resources

Weather Conditions

Skip Image

Zoom-in to make a selection

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
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 17 May 2026 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 16 August 2026 Tonight and Monday At 6:30 p.m. EDT tonight trough located on a line north-south over
southwestern Ontario.
By 6:30 p.m. EDT Monday trough located on a line north-south over
southeastern Quebec.

At 6:30 p.m. EDT tonight ridge located on a line northeast-southwest
over northwestern Ontario.
By 6:30 p.m. EDT Monday ridge located from James Bay to Lake
Michigan then to Kansas.

At 6:30 p.m. EDT tonight cold front located on a line
northeast-southwest over northwestern Manitoba.
By 6:30 p.m. EDT Monday approaching cold front located on a line
northeast-southwest over northwestern Ontario.

Great Lakes - Lake Erie and Lake Ontario 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

Colour-coded weather alerts

Learn more about weather alerting in Canada

Thunderstorm Outlooks

Find the Thunderstorm Outlook for your area.

Improved storm alerts

Learn more about targeted warnings for severe thunderstorms and tornadoes

Feedbackabout this web site
Date modified: