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FZUS63 KDTX 040803
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
403 AM EDT Sun Oct 4 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, will quickly exit east of
the region Tonight. Low pressure of 29.62 inches then tracks east
across southern Ontario Tonight into Sunday, intensifying to
around 29.44 inches as it tracks east across the James Bay area
Sunday night. This low will drive a cold front across the region
on Sunday, resulting in south winds to start the day becoming
west and northwesterly throughout Sunday afternoon and evening.
Northwest winds increase to around 25 to 30 knots Sunday night
into Monday morning, with gale force gusts to 35 knots appearing
more likely.

LCZ460-041615-
Lake St Clair-
403 AM EDT Sun Oct 4 2026

.TODAY...Light and variable winds becoming southwest 5 to 10 knots
in the late morning and afternoon. Partly sunny in the morning then
clearing. Waves 2 feet or less.
.TONIGHT...West winds 10 to 15 knots becoming northwest 15 to 20
knots by midnight...then diminishing to 10 to 15 knots early in the
morning. Mostly clear. Waves 2 feet or less.
.MONDAY...Northwest winds 10 to 15 knots. Sunny. Waves 2 feet or
less.
.MONDAY NIGHT...Northwest winds 5 to 10 knots early in the evening
becoming light and variable. Mostly clear. Waves 2 feet or less.
.TUESDAY...Northwest winds 5 to 10 knots becoming south 10 to 15
knots in the afternoon...then increasing to 15 to 20 knots in the
evening. Clear. Waves 2 feet or less.
.WEDNESDAY...West winds 15 to 20 knots. Mostly clear. Waves 1 to 3
feet.
.THURSDAY...Northwest winds 10 to 15 knots. Mostly clear. Waves 2
feet or less.

$$

CB

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

Graphical marine forecasts are available at weather.gov/greatlakes