


Great Lakes Forecast
Issued by NWS
Issued by NWS
149 FZUS63 KDTX 140154 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 954 PM EDT Mon Oct 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...A cold front tracks through the Central Great Lakes tonight, allowing winds to shift to the northwest. Expansive high pressure, 30.30 inches, will then build into the Great Lakes region tomorrow and Wednesday. LCZ460-141000- Lake St Clair- 954 PM EDT Mon Oct 13 2025 .REST OF TONIGHT...East winds 5 to 10 knots this evening becoming light and variable. Mostly clear. Waves 2 feet or less. .TUESDAY...Light and variable winds becoming north 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 2 feet or less. .TUESDAY NIGHT...North winds 10 to 15 knots. Mostly clear. Waves 2 feet or less. .WEDNESDAY...North winds 10 to 15 knots diminishing to 5 to 10 knots in the late morning and early afternoon...then increasing to 10 to 15 knots early in the afternoon. Partly sunny. A chance of light showers until late afternoon. Waves 2 feet or less. .WEDNESDAY NIGHT...Northeast winds 10 to 15 knots becoming north 5 to 10 knots after midnight. Clear. Waves 2 feet or less. .THURSDAY...North winds 5 to 10 knots in the morning becoming light and variable. Clear. Waves 2 feet or less. .FRIDAY...South winds 10 to 15 knots. Partly cloudy. A chance of light showers. Waves 2 feet or less. .SATURDAY...Southwest winds 10 to 15 knots. Partly cloudy. Light showers likely. Waves 1 to 3 feet. $$ MR Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes