831
FZUS63 KDTX 151959
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
359 PM EDT Sat Aug 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 of 30.20 inches moves over the Northeast
through Sunday as low pressure of 29.6 inches moves east across
Ontario. As the low tracks east, it will push a cold front across
the central Great Lakes region late Sunday. This cold front
brings in a 6 to 8 hour bout of 20 to 25 knot northwest winds
Sunday evening into early Monday morning and chances for
thunderstorms Sunday evening.

LCZ460-160400-
Lake St Clair-
359 PM EDT Sat Aug 15 2026

.TONIGHT...Southeast winds 5 to 10 knots increasing to 10 to 15
knots in the late evening and overnight. Mostly cloudy becoming
partly cloudy after midnight becoming mostly cloudy. A chance of
light showers after midnight. Waves 2 feet or less.
.SUNDAY...Southwest winds 5 to 10 knots. Mostly cloudy. A chance of
light showers early in the afternoon. A chance of thunderstorms in
the afternoon. Light showers likely late in the afternoon. Waves 2
feet or less.
.SUNDAY NIGHT...West winds 5 to 10 knots becoming northwest 10 to 15
knots in the late evening and overnight. Partly cloudy. A chance of
thunderstorms early in the evening. A chance of light showers .
Waves 2 feet or less.
.MONDAY...North winds 10 to 15 knots diminishing to 5 to 10 knots
early in the afternoon. Partly sunny until late afternoon then
clearing. Waves 2 feet or less.
.MONDAY NIGHT...Northeast winds 5 to 10 knots veering to the
southeast by midnight...then becoming light and variable after
midnight. Clear. Waves 2 feet or less.
.TUESDAY...Light and variable winds becoming southwest 10 to 15
knots in the afternoon and evening. Sunny in the morning becoming
mostly clear. Waves 2 feet or less.
.WEDNESDAY...North winds 10 to 15 knots. Partly cloudy. Showers
likely and a chance of thunderstorms. Waves 2 feet or less.
.THURSDAY...Northeast winds 10 to 15 knots. Mostly clear. Waves 2
feet or less.

$$

JA

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

Graphical marine forecasts are available at weather.gov/greatlakes