FZUS53 KMKX 211010 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 510 AM CDT Sun Jun 21 2026 For waters within five nautical miles of shore on Lake Michigan LMZ643-211600- Sheboygan to Port Washington WI- 510 AM CDT Sun Jun 21 2026 .TODAY...Northeast wind 5 knots becoming east late in the morning, then veering southeast early in the afternoon becoming southeast 5 to 10 knots late in the afternoon. Patchy fog until late afternoon. chance of showers late in the afternoon. Waves nearly calm. .TONIGHT...Southeast wind 5 to 10 knots backing east late in the evening, then becoming northeast 10 to 15 knots after midnight backing north with gusts to around 20 knots early in the morning. Slight chance of showers through around midnight. Waves around 1 foot. .MONDAY...North wind 15 to 20 knots veering northeast late in the afternoon. Gusts up to 25 knots. Partly sunny in the morning then clearing. Waves 3 to 4 feet. .MONDAY NIGHT...Northeast wind 10 to 15 knots easing to 5 to 10 knots late in the evening, then backing north after midnight. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. $$ LMZ644-211600- Port Washington to North Point Light WI- 510 AM CDT Sun Jun 21 2026 .TODAY...Northeast wind 5 to 10 knots veering southeast late in the afternoon. Patchy fog in the morning. slight chance of showers early in the afternoon. Chance of showers late in the afternoon. Waves around 1 foot. .TONIGHT...Southeast wind 5 to 10 knots backing northeast 5 to 15 knots late in the evening, then becoming 10 to 15 knots after midnight backing north 10 to 20 knots early in the morning. Chance of showers through the night. Waves 1 to 2 feet building to 2 to 4 feet early in the morning. .MONDAY...North wind 15 to 20 knots veering northeast in the afternoon. Gusts up to 25 knots. Partly sunny. Waves 3 to 4 feet building to 3 to 5 feet late in the afternoon. .MONDAY NIGHT...North wind 10 to 15 knots easing to 5 to 10 knots after midnight. Partly cloudy. Waves 3 to 4 feet subsiding to 1 to 2 feet early in the morning. $$ LMZ645-211600- North Point Light to Wind Point WI- 510 AM CDT Sun Jun 21 2026 .TODAY...Northeast wind 5 to 10 knots veering southeast late in the afternoon. Slight chance of showers early in the afternoon. Rain showers likely late in the afternoon. Waves around 1 foot. .TONIGHT...East wind 5 to 10 knots becoming northeast 10 to 15 knots in the late evening and early morning, then becoming north 15 to 20 knots early in the morning. Rain showers likely through around midnight, then chance of showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet early in the morning. .MONDAY...North wind 15 to 20 knots with gusts to around 25 knots. Partly sunny. Waves 3 to 4 feet building to 4 to 6 feet in the afternoon. .MONDAY NIGHT...North wind 10 to 20 knots becoming 10 to 15 knots in the late evening and overnight. Partly cloudy. Waves 3 to 5 feet subsiding to 3 to 4 feet in the late evening and overnight. $$ LMZ646-211600- Wind Point WI to Winthrop Harbor IL- 510 AM CDT Sun Jun 21 2026 .TODAY...Northeast wind 5 to 10 knots veering southeast in the afternoon. Chance of showers early in the afternoon. Rain showers likely late in the afternoon. Waves around 1 foot. .TONIGHT...East wind 10 to 15 knots backing northeast with gusts to around 20 knots late in the evening, then rising to 15 to 20 knots after midnight becoming northeast 15 to 20 knots early in the morning. Rain showers likely through around midnight, then chance of showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet after midnight. .MONDAY...North wind 15 to 20 knots with gusts to around 25 knots. Partly sunny. Waves 3 to 4 feet building to 4 to 6 feet. .MONDAY NIGHT...North wind 10 to 20 knots becoming 10 to 15 knots in the late evening and early morning, then becoming north 10 to 15 knots early in the morning. Partly cloudy. Waves 3 to 5 feet subsiding to 3 to 4 feet in the late evening and overnight. $$ See Lake Michigan Open Waters Forecast for Tuesday through Thursday.