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FZUS63 KDTX 271937
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
337 PM EDT Wed May 27 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, 30.30 inches, will expand across
northern Ontario tonight and Thursday. This will drive a little
cooler air across the region and cause an uptick in winds and
waves in the nearshore. The high will drift to the southern Great
Lakes Thursday night into Friday, sustaining dry conditions
across the region. A secondary high pressure system is forecast
to expand from Hudson Bay Friday to Lake Huron Saturday. This
will drive a secondary push of gusty northeast winds, likely
increasing winds and waves in the nearshore areas.

LCZ460-280345-
Lake St Clair-
337 PM EDT Wed May 27 2026

.TONIGHT...North winds 5 to 10 knots. Mostly clear. Waves 2 feet or
less.
.THURSDAY...North winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and early afternoon...then becoming northeast 10
to 15 knots late in the afternoon. Sunny. Waves 1 to 3 feet.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots becoming north 5 to
10 knots in the late evening and overnight. Clear. Waves 2 feet or
less.
.FRIDAY...Light and variable winds becoming west 5 to 10 knots in
the late morning and afternoon. Sunny. Waves 2 feet or less.
.FRIDAY NIGHT...Northwest winds 10 to 15 knots veering to the
northeast after midnight. Mostly clear. Waves 2 feet or less.
.SATURDAY...Northeast winds 10 to 15 knots. Clear. Waves 2 feet or
less.
.SUNDAY...East winds 5 to 10 knots. Mostly clear. Waves 2 feet or
less.
.MONDAY...North winds 10 to 15 knots. Mostly 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