Great Lakes Forecast
Issued by NWS
Issued by NWS
490 FZUS63 KDTX 101940 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 340 PM EDT Thu Sep 10 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...High pressure, 30.00 inches, expands into the region latter half of Thursday. This high then drifts over the central Great Lakes through Friday night. LCZ460-110345- Lake St Clair- 340 PM EDT Thu Sep 10 2026 .TONIGHT...North winds 5 to 10 knots veering to the northeast after midnight. Partly cloudy in the evening then clearing. Waves 2 feet or less. .FRIDAY...Northeast winds 5 to 10 knots in the morning becoming light and variable...then becoming southeast 5 to 10 knots late in the afternoon. Sunny. Waves 2 feet or less. .FRIDAY NIGHT...Southeast winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. Partly cloudy. Waves 2 feet or less. .SATURDAY...South winds 5 to 10 knots increasing to 10 to 15 knots in the late morning and afternoon. Partly sunny. Waves 2 feet or less. .SATURDAY NIGHT...Southwest winds 5 to 10 knots veering to the west after midnight. Partly cloudy. Waves 2 feet or less. .SUNDAY...Northwest winds 5 to 10 knots becoming north 10 to 15 knots in the evening. Mostly sunny in the morning becoming partly cloudy. Waves 2 feet or less. .MONDAY...Southeast winds 15 to 20 knots. Partly cloudy. Waves 1 to 3 feet. .TUESDAY...West winds 15 to 20 knots. Partly cloudy. Showers likely. Waves 1 to 3 feet. $$ KDK Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes