


Great Lakes Forecast
Issued by NWS
Issued by NWS
561 FZUS63 KDTX 080158 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 958 PM EDT Mon Jul 7 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...Mainly dry conditions overnight into Tuesday as high pressure builds further into the central Great Lakes. Turning warmer and more humid Wednesday with the arrival of a low pressure system. Expect a period of showers and thunderstorms with the system`s warm front and trailing cold front. Additional storms are possible Thursday. LCZ460-081000- Lake St Clair- 958 PM EDT Mon Jul 7 2025 .REST OF TONIGHT...North winds 5 to 10 knots. Mostly clear. Waves 2 feet or less. .TUESDAY...North winds 5 to 10 knots early in the morning becoming light and variable. Mostly sunny. Waves 2 feet or less. .TUESDAY NIGHT...Southeast winds 5 to 10 knots veering to the south after midnight. Partly cloudy. Waves 2 feet or less. .WEDNESDAY...South winds 5 to 10 knots. Mostly cloudy. A chance of showers and thunderstorms in the afternoon. Waves 2 feet or less. .WEDNESDAY NIGHT...Southeast winds 5 to 10 knots backing to the northeast after midnight. Partly cloudy. Waves 2 feet or less. .THURSDAY...Northeast winds 5 to 10 knots veering to the east in the afternoon and evening. Partly cloudy in the morning then clearing. Waves 2 feet or less. .FRIDAY...Southeast winds 5 to 10 knots. Mostly clear. Waves 2 feet or less. .SATURDAY...Southwest winds 5 to 10 knots. Partly cloudy. A chance of showers and thunderstorms. Waves 2 feet or less. $$ BT Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes