Great Lakes Forecast
Issued by NWS
Issued by NWS
598 FZUS63 KDTX 040720 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 320 AM EDT Mon May 4 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...Southwest winds continue through today with localized elevated winds found within the Saginaw Bay. A cold front moves through tonight into tomorrow morning which veers wind direction from southwest to northwest. LCZ460-041530- Lake St Clair- 320 AM EDT Mon May 4 2026 .TODAY...Southwest winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon. Sunny. Waves 1 to 3 feet. .TONIGHT...Southwest winds 15 to 20 knots. Partly cloudy becoming mostly cloudy. A chance of light showers. Waves 1 to 3 feet. .TUESDAY...West winds 10 to 15 knots becoming northwest 5 to 10 knots in the late morning and afternoon. Mostly cloudy. A chance of light showers until late afternoon...then light showers likely early in the afternoon. Waves 2 feet or less. .TUESDAY NIGHT...West winds 5 to 10 knots veering to the north after midnight. Cloudy. Light showers likely early in the evening...then a chance of light showers in the late evening and overnight. Waves 2 feet or less. .WEDNESDAY...North winds 5 to 10 knots. Partly sunny becoming mostly cloudy. Waves 2 feet or less. .THURSDAY...West winds 5 to 10 knots. Partly cloudy. A chance of showers. Waves 2 feet or less. .FRIDAY...West winds 10 to 15 knots. Partly cloudy. A chance of showers. Waves 2 feet or less. $$ SC Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes