FZUS53 KGRB 201856 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 156 PM CDT Sat Jun 20 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-202200- Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 156 PM CDT Sat Jun 20 2026 .THIS AFTERNOON...E wind 5 to 10 kts veering SE early in the afternoon. Waves 2 ft or less. Scattered showers and isolated thunderstorms. .TONIGHT...S wind 5 to 10 kts veering NW, then veering N after midnight. Waves 2 ft or less. Isolated showers in the evening. .SUNDAY...E wind 5 to 10 kts. Waves 2 ft or less. Partly sunny. .SUNDAY NIGHT...E wind 5 to 10 kts backing NE 10 to 15 kts in the late evening and overnight. Waves 2 ft or less. Mostly cloudy in the evening then becoming partly cloudy. $$ LMZ541>543-202200- Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 156 PM CDT Sat Jun 20 2026 .THIS AFTERNOON...E wind 5 to 10 kts veering S early in the afternoon. Waves 2 ft or less. Isolated showers and thunderstorms. .TONIGHT...SW wind 5 to 10 kts veering NW, then veering N after midnight. Waves 2 ft or less. Isolated showers in the evening. .SUNDAY...E wind 5 to 10 kts. Waves 2 ft or less. Mostly cloudy. .SUNDAY NIGHT...NE wind 10 to 15 kts. Waves 1 to 3 ft. Mostly cloudy. $$ See Lake Michigan Open Lake Forecast for Monday through Wednesday.