


Great Lakes Forecast
Issued by NWS
Issued by NWS
182 FZUS63 KDTX 041933 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 333 PM EDT Sat Oct 4 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...A series of low pressure systems that are traveling from the Plains into the James Bay this weekend will continue to support south to southwest flow this weekend. The next likely chance for active weather will enter Monday into Tuesday morning when a strong cold front crosses the Great Lakes. Wind direction backs from southwest to north after the passage of the front. LCZ460-050345- Lake St Clair- 333 PM EDT Sat Oct 4 2025 .TONIGHT...South winds 10 to 15 knots diminishing to 5 to 10 knots early in the morning. Clear. Waves 2 feet or less. .SUNDAY...South winds 5 to 10 knots increasing to 10 to 15 knots late in the afternoon. Sunny. Waves 2 feet or less. .SUNDAY NIGHT...South winds 10 to 15 knots. Mostly clear. Waves 1 to 3 feet. .MONDAY...Southwest winds 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...Southwest winds 10 to 15 knots. A chance of light showers until early morning...then light showers and a chance of thunderstorms after midnight. Waves 2 feet or less. .TUESDAY...West winds 10 to 15 knots veering to the north in the afternoon...then increasing to 15 to 20 knots in the evening. Light showers...then partly cloudy with light showers likely in the evening. Waves 2 feet or less. .WEDNESDAY...Northeast winds 15 to 20 knots. Mostly clear. Waves 1 to 3 feet. .THURSDAY...Southeast winds 10 to 15 knots. Clear. Waves 2 feet or less. $$ AM Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes