FZUS63 KDTX 221948
GLFSC 

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
348 PM EDT Sat Aug 22 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...A cold front continues to progress across the Great
Lake this evening, which will veer wind direction to the
northwest. Showers and thunderstorms are expected along the
front. Post-frontal northwest flow leads to gusty winds through
the day on Sunday and Monday.

LCZ460-230400-
Lake St Clair-
348 PM EDT Sat Aug 22 2026

.TONIGHT...Northwest winds 10 to 15 knots increasing to 15 to 20
knots in the late evening and overnight. Mostly cloudy with showers
likely and a chance of thunderstorms early in the evening...then
mostly cloudy with a chance of showers and thunderstorms late in the
evening. Partly cloudy after midnight. Waves 1 to 3 feet.
.SUNDAY...Northwest winds 15 to 20 knots diminishing to 10 to 15
knots late in the afternoon. Partly sunny. A chance of light showers
in the afternoon. Waves 1 to 3 feet.
.SUNDAY NIGHT...Northwest winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. Partly cloudy. A chance
of light showers early in the evening. Waves 1 to 3 feet.
.MONDAY...West winds 10 to 15 knots. Mostly sunny. Waves 2 feet or
less.
.MONDAY NIGHT...Northwest winds 10 to 15 knots diminishing to 5 to
10 knots in the late evening and overnight. Mostly clear. Waves 2
feet or less.
.TUESDAY...Northwest winds 5 to 10 knots in the morning becoming
light and variable...then becoming south 5 to 10 knots in the
evening. Mostly clear. Waves 2 feet or less.
.WEDNESDAY...South winds 10 to 15 knots. Partly cloudy. A chance of
showers. Waves 2 feet or less.
.THURSDAY...West winds 10 to 15 knots. Partly cloudy. A chance of
showers and thunderstorms. Waves 2 feet or less.

$$

AM

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

Graphical marine forecasts are available at weather.gov/greatlakes