FZUS63 KDTX 201359 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 959 AM EDT Fri Mar 20 2026 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...A compact clipper tracks across northern Lake Huron this morning. Weak high pressure follows on Saturday before a strong cold front sinks south across the region with gusty northeast wind on Sunday. Stronger high pressure follows on Monday with another cold front expected Tuesday. LCZ460-202200- Lake St Clair- 959 AM EDT Fri Mar 20 2026 .REST OF TODAY...Southwest winds 10 to 15 knots veering to the northwest late in the afternoon. Mostly cloudy. A chance of light rain late in the morning. Waves 2 feet or less. .TONIGHT...North winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. Mostly cloudy. Waves 2 feet or less. .SATURDAY...Light and variable winds becoming southeast 5 to 10 knots early in the afternoon. Mostly cloudy. Waves 2 feet or less. .SATURDAY NIGHT...South winds 5 to 10 knots. Partly cloudy becoming mostly cloudy. Waves 2 feet or less. .SUNDAY...Southwest winds 5 to 10 knots becoming north 10 to 15 knots in the afternoon...then increasing to 15 to 20 knots in the evening. Mostly cloudy. A chance of light rain. Waves 2 feet or less. .MONDAY...North winds 15 to 20 knots. Partly cloudy. Waves 1 to 3 feet. .TUESDAY...West winds 10 to 15 knots. Partly cloudy. Waves 2 feet or less. $$ MV Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes