


Great Lakes Forecast
Issued by NWS
Issued by NWS
169 FZUS63 KDTX 131334 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 934 AM EDT Sun Jul 13 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...High pressure, 30.00 inches, builds over the Great Lakes today and will hold through Tuesday. The next chance for active weather returns by the midweek period as a pre-frontal trough and cold front move over the region. LCZ460-132145- Lake St Clair- 934 AM EDT Sun Jul 13 2025 .REST OF TODAY...Southwest winds 5 to 10 knots. Partly sunny. A chance of showers late in the morning. Waves 2 feet or less. .TONIGHT...West winds 5 to 10 knots. Partly cloudy. Waves 2 feet or less. .MONDAY...Light and variable winds. Sunny. Waves 2 feet or less. .MONDAY NIGHT...Light and variable winds becoming south 5 to 10 knots in the late evening and early morning...then becoming light and variable after midnight. Clear. Waves 2 feet or less. .TUESDAY...Light and variable winds becoming southeast 5 to 10 knots in the afternoon and evening. Sunny in the morning becoming mostly clear. Waves 2 feet or less. .WEDNESDAY...Southwest winds 5 to 10 knots. Partly cloudy. Showers likely and a chance of thunderstorms. Waves 2 feet or less. .THURSDAY...Northwest winds 10 to 15 knots. Partly cloudy. Showers likely and a chance of thunderstorms. Waves 2 feet or less. $$ KDK Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes