Great Lakes Forecast
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FZUS63 KDTX 150748
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
348 AM EDT Wed Oct 15 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...Northeast flow backs to northwest by the late
afternoon and evening hours in the wake of a cold front.
Expansive high pressure, 30.30 inches, will then build into the
Great Lakes through and will last through Thursday.

LCZ460-151600-
Lake St Clair-
348 AM EDT Wed Oct 15 2025

.TODAY...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 late in the afternoon. Mostly cloudy until late afternoon
becoming mostly sunny. Waves 2 feet or less.
.TONIGHT...North winds 10 to 15 knots diminishing to 5 to 10 knots
after midnight. Clear. Waves 2 feet or less.
.THURSDAY...North winds 5 to 10 knots until late afternoon becoming
light and variable. Sunny. Waves 2 feet or less.
.THURSDAY NIGHT...Light and variable winds. Clear. Waves nearly
calm.
.FRIDAY...South winds 5 to 10 knots increasing to 10 to 15 knots in
the evening. Mostly sunny becoming partly sunny in the afternoon
becoming mostly cloudy. A chance of light showers in the evening.
Waves 2 feet or less.
.SATURDAY...South winds 15 to 20 knots. Light showers. Waves 1 to 3
feet.
.SUNDAY...West winds 20 to 25 knots with gusts to 30 knots. Light
showers. Waves 2 to 4 feet. A Small Craft Advisory may be needed.

$$

TF

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

Graphical marine forecasts are available at weather.gov/greatlakes