Great Lakes Forecast
Issued by NWS
Issued by NWS
713 FZUS63 KDTX 271909 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 309 PM EDT Mon Apr 27 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...The next low, 29.30 inches, will track through Lake Superior tonight with showers and embedded thunderstorms. The cold front passes through on Tuesday. LCZ460-280315- Lake St Clair- 309 PM EDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH TUESDAY AFTERNOON... .TONIGHT...Southeast winds 15 to 20 knots with gusts to 30 knots becoming south 20 to 25 knots with gusts to 30 knots after midnight. A chance of light showers in the evening. Light showers and a chance of thunderstorms after midnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .TUESDAY...South winds 20 to 25 knots becoming southwest 15 to 20 knots in the late morning and early afternoon...then becoming west 10 to 15 knots late in the afternoon. Cloudy early in the morning becoming partly sunny. Light showers likely early in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. .TUESDAY NIGHT...West winds 10 to 15 knots becoming north 5 to 10 knots in the late evening and overnight. Partly cloudy becoming mostly cloudy. Waves 2 feet or less. .WEDNESDAY...North winds 10 to 15 knots. Mostly cloudy. Light showers likely in the late morning and early afternoon. A chance of light showers early in the afternoon. Waves 2 feet or less. .WEDNESDAY NIGHT...North winds 10 to 15 knots becoming northwest 5 to 10 knots after midnight. Partly cloudy until early morning then clearing. A chance of light showers early in the evening. Waves 2 feet or less. .THURSDAY...Northwest winds 10 to 15 knots becoming north 5 to 10 knots in the evening. Sunny in the morning becoming partly cloudy. Waves 2 feet or less. .FRIDAY...North winds 10 to 15 knots. Partly cloudy. Waves 2 feet or less. .SATURDAY...Northwest 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