FZUS63 KDTX 220158 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 958 PM EDT Sat Mar 21 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 clipper, 29.50 inches, drags a strong cold front across the region over the course of Sunday. Breezy north to northeast winds will develop behind this front. Stronger high pressure follows on Monday with another cold front expected to glance the central Great Lakes Tuesday. LCZ460-221000- Lake St Clair- 958 PM EDT Sat Mar 21 2026 .REST OF TONIGHT...South winds 5 to 10 knots becoming southwest 10 to 15 knots after midnight...then diminishing to 5 to 10 knots early in the morning. Mostly cloudy. Waves 2 feet or less. .SUNDAY...Northwest winds 5 to 10 knots becoming north 15 to 20 knots. Mostly cloudy. A chance of light rain early in the afternoon. Light rain likely late in the afternoon. Waves 2 feet or less. .SUNDAY NIGHT...North winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Mostly cloudy. A chance of light rain early in the evening. Waves 1 to 3 feet. .MONDAY...North winds 10 to 15 knots diminishing to 5 to 10 knots early in the afternoon. Partly sunny. Waves 2 feet or less. .MONDAY NIGHT...Northeast winds 5 to 10 knots veering to the southeast after midnight. Mostly clear. Waves 2 feet or less. .TUESDAY...South winds 10 to 15 knots becoming southwest 5 to 10 knots in the evening. Partly sunny becoming mostly cloudy. Waves 2 feet or less. .WEDNESDAY...Southeast winds 10 to 15 knots. Mostly cloudy. Waves 2 feet or less. .THURSDAY...North winds 15 to 20 knots. Mostly cloudy with a chance of light rain. Waves 1 to 3 feet. $$ BT Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes