National Weather Service Marine Forecast FZUS63 KDTX

FZUS63 KDTX 152057
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
357 PM EST Thu Jan 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
Two main low pressure systems affect the Great Lakes during the late week and weekend. The next system moves in from central Canada tonight to near the west end of Lake Superior at 29.50 inches by Friday afternoon. It dominates the weather across the Great Lakes with a wide range of conditions. Temperatures moderate in the first phase of the system as a pattern of snow moves across Lake Huron and Lower Mi Friday and Friday night. This is followed by a brief period of high pressure and then the second low pressure system that brings progressively colder conditions highlighted by a surge of arctic air late Sunday through early next week.

LCZ460-160500
Lake St Clair
357 PM EST Thu Jan 15 2026

TONIGHT
West winds 5 to 10 knots becoming southwest 10 to 15 knots after midnight. Mostly clear becoming mostly cloudy. Waves 2 feet or less.

FRIDAY
South winds 15 to 20 knots. A chance of light snow early in the morning...then light snow in the late morning and early afternoon. A chance of light snow late in the afternoon. Waves 1 to 3 feet.

FRIDAY NIGHT
Southwest winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Mostly cloudy. Waves 1 to 3 feet.

SATURDAY
Southwest winds 10 to 15 knots increasing to 15 to 20 knots early in the afternoon. Mostly cloudy with a chance of light snow. Waves 1 to 3 feet.

SATURDAY NIGHT
Southwest winds 15 to 20 knots. Partly cloudy. Waves 1 to 3 feet.

SUNDAY
Southwest winds 15 to 20 knots. Partly sunny in the morning becoming mostly cloudy. Waves 1 to 3 feet.

MONDAY
West winds to 30 knots with gusts to 35 knot gales. Mostly cloudy with a chance of light snow. Waves 2 to 4 feet. A Gale Warning may be needed.

TUESDAY
Southwest winds 20 to 25 knots. Partly cloudy. Waves 1 to 3 feet.

BT

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

Graphical marine forecasts are available at weather.gov/greatlakes