Great Lakes Forecast
Issued by NWS
Issued by NWS
189 FZUS63 KDTX 240249 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 949 PM EST Fri Jan 23 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, 31.80 inches, to settle in across the Great Lakes tonight before departing into New England tomorrow. Light snow to then fill in across the southern Great Lakes through the day Sunday as an expansive low pressure system arrives across the Appalachia region. LCZ460-241100- Lake St Clair- 949 PM EST Fri Jan 23 2026 .REST OF TONIGHT...West winds 5 to 10 knots. Mostly clear. .SATURDAY...Light and variable winds. Mostly sunny in the morning becoming mostly cloudy. .SATURDAY NIGHT...Light and variable winds becoming east 5 to 10 knots in the late evening and overnight. Mostly cloudy. A chance of light snow after midnight. .SUNDAY...Northeast winds 10 to 15 knots. A chance of light snow early in the morning...then light snow in the late morning and afternoon. .SUNDAY NIGHT...North winds 10 to 15 knots. Mostly cloudy. Light snow early in the evening...then light snow likely by midnight. A chance of light snow after midnight. .MONDAY...Northwest winds 10 to 15 knots becoming west 15 to 20 knots in the evening. Mostly cloudy with a chance of light snow in the morning...then partly cloudy in the afternoon and evening. .TUESDAY...West winds 15 to 20 knots. Partly cloudy. .WEDNESDAY...West winds 10 to 15 knots. Partly cloudy. Waves omitted due to ice coverage. $$ AA Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes