Lake St. Clair
Forecast
Marine Forecast
Issued 10:30 AM EDT 13 July 2025
Today Tonight and Monday.
Wind west 10 knots backing to southwest 10 Monday morning.
Scattered showers this afternoon with a risk of thunderstorms.
Waves
Issued 10:30 AM EDT 13 July 2025
Today Tonight and Monday.
Waves 0.5 metres or less.
Extended Forecast
Issued 03:00 AM EDT 13 July 2025
Tuesday
Wind light.
Wednesday
Wind light.
Thursday
Wind light becoming northwest 15 knots late
in the day.
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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 10:30 AM EDT 13 July 2025 Today Tonight and Monday At 10:30 a.m. EDT today trough from 992 mb low located from JamesBay to Lake Erie.
By 10:30 a.m. EDT Monday departing trough from 985 mb low located
from Hudson Bay to the St. Lawrence River.
At 10:30 a.m. EDT today quasi-stationary ridge located on a line
northeast-southwest over West Virginia.
Great Lakes - Lake Erie and Lake Ontario Area
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