Great Lakes Forecast
Issued by NWS
Issued by NWS
408 FZUS63 KDTX 250754 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 354 AM EDT Sat Apr 25 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...Low pressure, 29.70 inches, migrates into the upper Ohio Valley today. Broad high pressure, 30.10 inches, then extends into the Great Lakes from the north later today through Sunday. LCZ460-251600- Lake St Clair- 354 AM EDT Sat Apr 25 2026 .TODAY...North winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Mostly cloudy. Patchy fog early in the morning. Waves 2 feet or less. .TONIGHT...Northeast winds 10 to 15 knots diminishing to 5 to 10 knots early in the morning. Partly cloudy. Waves 2 feet or less. .SUNDAY...Northeast winds 10 to 15 knots becoming east 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 2 feet or less. .SUNDAY NIGHT...East winds 5 to 10 knots. Mostly clear. Waves 2 feet or less. .MONDAY...Southeast winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon and evening. Mostly sunny becoming partly cloudy. Waves 1 to 3 feet. .TUESDAY...West winds 20 to 25 knots with gusts to 30 knots. Partly cloudy. Showers likely and a chance of thunderstorms. Waves 2 to 4 feet. A Small Craft Advisory may be needed. .WEDNESDAY...North winds 10 to 15 knots. Partly cloudy. Waves 2 feet or less. $$ TF Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes