Western Lake Ontario
Forecast
Marine Forecast
Issued 03:00 AM EDT 21 June 2025
Today Tonight and Sunday.
Wind light becoming southeast 10 knots this morning then increasing to southwest 15 early this evening. Wind increasing to southwest 15 to 20 near midnight then becoming southwest 15 Sunday morning.
Scattered showers today with a risk of thunderstorms. Scattered showers overnight and Sunday morning with a risk of thunderstorms. Fog patches dissipating near noon.
Waves
Issued 03:00 AM EDT 21 June 2025
Today Tonight and Sunday.
Waves 0.5 metres or less building to 0.5 to 1 this evening and to
1 to 1.5 overnight. Waves subsiding to 0.5 to 1 Sunday evening.
Extended Forecast
Issued 03:00 AM EDT 21 June 2025
Monday
Wind southwest 15 knots.
Tuesday
Wind west 15 knots diminishing to light late
in the day.
Wednesday
Wind light.
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Weather Conditions
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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 EDT 21 June 2025 Today Tonight and Sunday At 3:00 a.m. EDT today departing ridge located on a line north-southover western Quebec.
At 3:00 a.m. EDT today low 992 mb located over South Dakota.
By 3:00 a.m. EDT Sunday low 1001 mb located over southern Quebec.
Great Lakes - Lake Huron Area
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