Lake St. Clair
Forecast
Marine Forecast
Issued 10:30 AM EDT 19 June 2025
Today Tonight and Friday.
Wind northwest 15 to 20 knots diminishing to northwest 10 near noon then becoming light early this evening. Wind becoming southwest 10 near midnight. Wind southwest 10 Friday.
Scattered showers. Risk of thunderstorms today and early this evening and Friday afternoon and evening.
Waves
Issued 10:30 AM EDT 19 June 2025
Today Tonight and Friday.
Waves 0.5 to 1 metre subsiding to 0.5 or less this
afternoon.
Extended Forecast
Issued 03:00 AM EDT 19 June 2025
Saturday
Wind light.
Sunday
Wind light.
Monday
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.Synopsis
Technical Marine Synopsis
Issued 10:30 AM EDT 19 June 2025 Today Tonight and Friday At 10:30 a.m. EDT today low 999 mb located over southern GeorgianBay.
By 10:30 a.m. EDT Friday low 996 mb located over northern New
Brunswick.
At 10:30 a.m. EDT today ridge located on a line east-west over
northern Ontario.
By 10:30 a.m. EDT Friday ridge located on a line northeast-southwest
over northeastern Ontario.
Great Lakes - Lake Erie and Lake Ontario Area
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