


Great Lakes Forecast
Issued by NWS
Issued by NWS
667 FZUS63 KDTX 060711 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 311 AM EDT Sun Jul 6 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...Low pressure, 29.70 inches, slides across the northern Great Lakes through Sunday. Its attendant cold front sinks across Lakes Huron and St. Clair on Sunday offering scattered thunderstorm chances. A few storms could linger over the southern Great Lakes Monday before high pressure builds in for Tuesday. LCZ460-061515- Lake St Clair- 311 AM EDT Sun Jul 6 2025 .TODAY...Southwest winds 10 to 15 knots. Sunny in the morning... then partly sunny with light showers likely and a chance of thunderstorms in the afternoon. Waves 2 feet or less. .TONIGHT...Northwest winds 10 to 15 knots veering to the north after midnight. Partly cloudy with light showers likely and a chance of thunderstorms in the evening...then mostly cloudy with a chance of light showers after midnight. Waves 2 feet or less. .MONDAY...North winds 5 to 10 knots. Mostly cloudy. A chance of showers and thunderstorms in the morning. Waves 2 feet or less. .MONDAY NIGHT...Northeast winds 10 to 15 knots becoming north 5 to 10 knots after midnight. Partly cloudy. Waves 2 feet or less. .TUESDAY...North winds 5 to 10 knots veering to the east in the afternoon and evening. Mostly sunny becoming partly cloudy. Waves 2 feet or less. .WEDNESDAY...East winds 5 to 10 knots. Partly cloudy. A chance of showers and thunderstorms. Waves 2 feet or less. .THURSDAY...Northeast winds 5 to 10 knots. Partly cloudy. A chance of showers and thunderstorms. Waves 2 feet or less. $$ MR Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes