340
FZUS63 KDTX 190746
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
346 AM EDT Sun Jul 19 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 low pressure system tracking through the northern
lakes region will drag a cold front through the eastern lakes
through this evening. High pressure will then build in tonight
and remain across the region through the rest of the weekend.

LCZ460-191600-
Lake St Clair-
346 AM EDT Sun Jul 19 2026

.TODAY...North winds 10 to 15 knots diminishing to 5 to 10 knots in
the late morning and afternoon. Sunny. Smoke in the morning.. then
patchy smoke early in the afternoon. Waves 2 feet or less.
.TONIGHT...Northeast winds 5 to 10 knots this evening becoming light
and variable. Mostly clear. Waves 2 feet or less.
.MONDAY...South winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon. Mostly sunny. Waves 2 feet or less.
.MONDAY NIGHT...South winds 10 to 15 knots increasing to 15 to 20
knots in the late evening and overnight. Mostly cloudy. Light
showers likely and a chance of thunderstorms after midnight. Waves 1
to 3 feet.
.TUESDAY...Southwest winds 20 to 25 knots becoming west 15 to 20
knots in the afternoon...then becoming northwest 20 to 25 knots in
the evening. Becoming mostly clear in the evening. Light showers
likely in the morning. A chance of thunderstorms. Light showers in
the afternoon and evening. Waves 1 to 3 feet.
.WEDNESDAY...North winds 20 to 25 knots. Mostly clear. Waves 2 to 4
feet.
.THURSDAY...Southeast winds 5 to 10 knots. Clear. Waves 2 feet or
less.

$$

AA

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

Graphical marine forecasts are available at weather.gov/greatlakes