


Great Lakes Forecast
Issued by NWS
Issued by NWS
007 FZUS63 KDTX 021346 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 946 AM EDT Sat Aug 2 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, 30.40 inches, over the Western Great Lakes will slowly weaken and drift eastward through the weekend, supporting light winds into early next week. LCZ460-022200- Lake St Clair- 946 AM EDT Sat Aug 2 2025 .REST OF TODAY...Northeast winds 5 to 10 knots in the late morning and early afternoon becoming light and variable. Mostly sunny. Areas of smoke in the afternoon. Waves 2 feet or less. .TONIGHT...Light and variable winds. Clear. Areas of smoke in the evening. Waves nearly calm. .SUNDAY...Light and variable winds. Sunny. Waves 2 feet or less. .SUNDAY NIGHT...Southeast winds 5 to 10 knots early in the evening becoming light and variable...then becoming east 5 to 10 knots after midnight. Clear. Waves 2 feet or less. .MONDAY...East winds 5 to 10 knots. Sunny becoming mostly clear. Waves 2 feet or less. .TUESDAY...East winds 5 to 10 knots. Mostly clear. Waves 2 feet or less. .WEDNESDAY...Southeast winds 5 to 10 knots. Partly cloudy. Waves 2 feet or less. $$ AA Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes