


Great Lakes Forecast
Issued by NWS
Issued by NWS
762 FZUS63 KDTX 301955 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 355 PM EDT Sat Aug 30 2025 Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. .SYNOPSIS...High pressure, 30.20 inches, will continue to hold over the Great Lakes through the weekend and into early next week. This will sustain dry weather and tranquil conditions. LCZ460-310400- Lake St Clair- 355 PM EDT Sat Aug 30 2025 .TONIGHT...Light and variable winds. Mostly clear. Waves nearly calm. .SUNDAY...Light and variable winds. Sunny. Waves nearly calm. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Clear. Waves 2 feet or less. .MONDAY...East winds 5 to 10 knots. Sunny. Waves 2 feet or less. .MONDAY NIGHT...East winds 5 to 10 knots until early morning becoming light and variable. Clear. Waves 2 feet or less. .TUESDAY...Northeast winds 5 to 10 knots veering to the southeast in the afternoon and evening. Clear. Waves 2 feet or less. .WEDNESDAY...South winds 15 to 20 knots. Partly cloudy. Showers likely and a chance of thunderstorms. Waves 2 feet or less. .THURSDAY...West winds 15 to 20 knots. Partly cloudy. Showers likely and a chance of thunderstorms. Waves 1 to 3 feet. $$ SS Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes