Great Lakes Forecast
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226
FZUS63 KDTX 300759
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
359 AM EDT Wed Sep 30 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, 30.10 inches, exits as southwest winds
slowly increase ahead of a cold front. This front gets hung up
over southern lower Michigan, leading to occasional showers today
through Friday.

LCZ460-301600-
Lake St Clair-
359 AM EDT Wed Sep 30 2026

.TODAY...Southwest winds 5 to 10 knots becoming south 10 to 15 knots
late in the morning...then diminishing to 5 to 10 knots in the
afternoon. Mostly cloudy. Waves 2 feet or less.
.TONIGHT...South winds 10 to 15 knots. Cloudy. Light showers likely.
Waves 2 feet or less.
.THURSDAY...Southwest winds 10 to 15 knots diminishing to 5 to 10
knots early in the afternoon. Mostly cloudy. Light showers likely
early in the morning. Waves 2 feet or less.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots becoming northwest
10 to 15 knots after midnight. Showers. Waves 2 feet or less.
.FRIDAY...North winds 10 to 15 knots. Mostly cloudy with light
showers in the morning...then mostly clear in the afternoon and
evening. Waves 2 feet or less.
.SATURDAY...East winds 10 to 15 knots. Mostly clear. Waves 2 feet or
less.
.SUNDAY...Northwest winds 15 to 20 knots. Mostly clear. 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