FZUS63 KDTX 150742
GLFSC 

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
342 AM EDT Thu Oct 15 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, 30.30 inches, passes across the
northern Great Lakes this morning. Low pressure is forecast to
strengthen to 29.60 inches as it tracks across the central Great
Lakes Thursday night and early Friday. A strong cold front in its
wake brings likely northerly gales late Friday.

LCZ460-151545-
Lake St Clair-
342 AM EDT Thu Oct 15 2026

.TODAY...East winds 10 to 15 knots. Mostly cloudy. Waves 2 feet or
less.
.TONIGHT...East winds 10 to 15 knots becoming southeast 15 to 20
knots late in the evening...then becoming south 20 to 25 knots after
midnight veering to the southwest with gusts to 30 knots early in
the morning. Cloudy. Rain likely. A chance of light rain early in
the morning. Waves 1 to 3 feet building to 2 to 4 feet after
midnight.
.FRIDAY...West winds 20 to 25 knots becoming northwest 15 to 20
knots in the late morning and afternoon. Mostly cloudy. A chance of
light rain early in the morning. A chance of light rain early in the
afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late
morning and afternoon.
.FRIDAY NIGHT...North winds 20 to 25 knots increasing to 30 knots in
the late evening and overnight. Mostly cloudy early in the evening
becoming partly cloudy. A chance of light rain early in the evening.
Waves 2 to 4 feet. A Small Craft Advisory may be needed.
.SATURDAY...North winds 20 to 25 knots becoming northwest 10 to 15
knots in the afternoon...then backing to the west in the evening.
Clear. Waves 2 to 4 feet subsiding to 2 feet or less in the
afternoon and evening.
.SUNDAY...Southwest winds 10 to 15 knots. Clear. Waves 1 to 3 feet.
.MONDAY...Southwest winds 10 to 15 knots. Mostly clear. Waves 2 feet
or less.

$$

KDK

Experimental modernized open lake forecast is available online at
weather.gov/dtx/glftablesc

Graphical marine forecasts are available at weather.gov/greatlakes