Lake St. Clair
Forecast
Marine Forecast
Issued 10:30 AM EDT 16 July 2025
Today Tonight and Thursday.
Wind south 10 knots increasing to southwest 15 late overnight then veering to northwest 15 near noon Thursday. Wind veering to north 15 Thursday evening.
Scattered showers ending this evening with a risk of thunderstorms. Scattered showers Thursday with a risk of thunderstorms.
Waves
Issued 10:30 AM EDT 16 July 2025
Today Tonight and Thursday.
Waves less than 0.5 metres building to 0.5 early Thursday
morning.
Extended Forecast
Issued 03:00 AM EDT 16 July 2025
Friday
Wind northeast 15 knots diminishing to light in
the morning.
Saturday
Wind light.
Sunday
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 10:30 AM EDT 16 July 2025 Today Tonight and Thursday At 10:30 a.m. EDT today trough located on a line northeast-southwestover North Channel.
By 10:30 a.m. EDT Thursday trough located on a line
northeast-southwest over Lake Simcoe.
At 10:30 a.m. EDT today low 1008 mb located over western Wisconsin.
By 10:30 a.m. EDT Thursday low 1004 mb located over Georgian Bay.
At 10:30 a.m. EDT today high 1024 mb located over southeastern
Saskatchewan.
By 10:30 a.m. EDT Thursday high 1021 mb located over western
Minnesota.
Great Lakes - Lake Erie and Lake Ontario Area
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