Great Lakes Forecast
Issued by NWS
Issued by NWS
735 FZUS63 KDTX 300154 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 954 PM EDT Wed Jul 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...High pressure drop southeast across the central Great Lakes through the end of the week. Late Friday and through the weekend, a surface low is progged to track east across the Ohio Valley. Locally, winds across the central Great Lakes will become north-northeast Saturday. As this low approaches, the likelihood of showers and a few thunderstorms increase late Friday and on Saturday. On Sunday, north winds will briefly become reinforced and lingering chances for showers and storms remain in the forecast as a cold front drops south across the region. High pressure follows for early next week. LCZ460-301000- Lake St Clair- 954 PM EDT Wed Jul 29 2026 .REST OF TONIGHT...North winds 5 to 10 knots. Clear. Waves 2 feet or less. .THURSDAY...Northwest winds 10 to 15 knots becoming north 5 to 10 knots in the late morning and afternoon. Sunny. Waves 2 feet or less. .THURSDAY NIGHT...Northeast winds 5 to 10 knots early in the evening becoming light and variable. Mostly clear. Waves 2 feet or less. .FRIDAY...Light and variable winds becoming southeast 5 to 10 knots early in the afternoon. Mostly sunny. Waves 2 feet or less. .FRIDAY NIGHT...South winds 5 to 10 knots veering to the northwest by midnight...then veering to the northeast after midnight. Cloudy. A chance of light showers. Waves 2 feet or less. .SATURDAY...Northeast winds 5 to 10 knots. Mostly cloudy. A chance of showers and thunderstorms in the afternoon and evening. Waves 2 feet or less. .SUNDAY...North winds 15 to 20 knots. Partly cloudy. A chance of showers. Waves 2 feet or less. .MONDAY...Northeast winds 10 to 15 knots. Mostly clear. Waves 2 feet or less. $$ JA Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes