Great Lakes Forecast
Issued by NWS
Issued by NWS
263 FZUS63 KDTX 251359 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 959 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, exits into Appalachia today. Broad high pressure, 30.20 inches, then extends into the Great Lakes from the north tonight through Sunday. LCZ460-252200- Lake St Clair- 959 AM EDT Sat Apr 25 2026 .REST OF TODAY...North winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Mostly cloudy. 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. $$ KGK Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes