Georgian Bay
Forecast
Marine Forecast
Issued 10:30 AM EDT 20 July 2025
Today Tonight and Monday.
Wind north 15 knots backing to northwest 15 near noon then veering to northeast 15 near midnight. Wind diminishing to north 10 Monday morning then increasing to northwest 15 Monday afternoon.
Waves
Issued 10:30 AM EDT 20 July 2025
Today Tonight and Monday.
Waves 0.5 to 1 metre subsiding to 0.5 or less near noon Monday
then building to 0.5 to 1 Monday evening.
Extended Forecast
Issued 03:00 AM EDT 20 July 2025
Tuesday
Wind light.
Wednesday
Wind light becoming south 15 knots.
Thursday
Wind southwest 15 knots.
Stay connected
Weather Conditions
Zoom-in to make a selection

Legend:


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 10:30 AM EDT 20 July 2025 Today Tonight and Monday At 10:30 a.m. EDT today trough located on a line northeast-southwestover the St. Lawrence River.
By 10:30 a.m. EDT Monday departing trough located on a line
north-south over Nova Scotia.
At 10:30 a.m. EDT today ridge from 1018 mb high located on a line
north-south over Lake of the Woods.
By 10:30 a.m. EDT Monday ridge from 1021 mb high located on a line
north-south over James Bay.
By 10:30 a.m. EDT Monday approaching trough located on a line
north-south over western Manitoba.
Great Lakes - Lake Erie and Lake Ontario Area
Another Region
- Date modified: