Great Lakes Forecast
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706
FZUS63 KDTX 182132 AAA
GLFSC

Lake St Clair Forecast...UPDATED
National Weather Service Detroit/Pontiac MI
532 PM EDT Sat Jul 18 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.

LCZ460-190545-
Lake St Clair-
532 PM EDT Sat Jul 18 2026

.TONIGHT...North winds 15 to 20 knots diminishing to 10 to 15 knots
early in the morning. Mostly clear. Areas of smoke in the
evening...then patchy smoke after midnight. Waves 1 to 3 feet.
.SUNDAY...North winds 10 to 15 knots diminishing to 5 to 10 knots in
the late morning and afternoon. Mostly sunny. Patchy smoke until
late afternoon. Waves 2 feet or less.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots becoming light and
variable. 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 15 to 20 knots. Partly cloudy ...then
showers after midnight. Waves 1 to 3 feet.
.TUESDAY...Southwest winds 20 to 25 knots becoming west 15 to 20
knots in the afternoon...then veering to the northwest in the
evening. Mostly cloudy in the morning becoming mostly clear in the
evening. Light showers and a chance of thunderstorms. 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.

$$

SC

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

Graphical marine forecasts are available at weather.gov/greatlakes