Great Lakes Forecast
Issued by NWS
Issued by NWS
770 FZUS63 KDTX 300139 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 939 PM EDT Sat Aug 29 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...The Great Lakes are located in between the exiting high pressure system, 30.30 inches, centered over the Mid Atlantic coast and low pressure, 29.70 inches, developing over the Dakotas. Active pattern returns late Sunday into Monday as a warm front lifts through the area bringing showers and storms. LCZ460-300945- Lake St Clair- 939 PM EDT Sat Aug 29 2026 .REST OF TONIGHT...Southwest winds 5 to 10 knots. Mostly cloudy. Waves 2 feet or less. .SUNDAY...South winds 5 to 10 knots. Mostly cloudy. A chance of light showers early in the morning...then light showers likely late in the morning. A chance of light showers in the afternoon. Waves 2 feet or less. .SUNDAY NIGHT...South winds 5 to 10 knots. Mostly cloudy. A chance of light showers early in the evening. Waves 2 feet or less. .MONDAY...South winds 5 to 10 knots. Partly sunny. Waves 2 feet or less. .MONDAY NIGHT...Southwest winds 10 to 15 knots. Partly cloudy. Waves 2 feet or less. .TUESDAY...Southwest winds 5 to 10 knots. Partly cloudy. Waves 2 feet or less. .WEDNESDAY...Southwest winds 10 to 15 knots. Partly cloudy. A chance of showers. Waves 2 feet or less. .THURSDAY...Northeast 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