FZUS53 KGRB 311331 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 831 AM CDT Sun May 31 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-311600- 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- 831 AM CDT Sun May 31 2026 .TODAY...S wind around 5 kts backing SE in the late morning and afternoon. Waves 2 ft or less. Mostly sunny. .TONIGHT...S wind around 5 kts veering SW, then veering NE after midnight. Waves 2 ft or less. Mostly clear. .MONDAY...NE wind 10 to 15 kts. Waves 2 ft or less. Mostly sunny. .MONDAY NIGHT...NE wind 10 to 15 kts. Waves 2 ft or less. Clear. $$ LMZ541-311600- Rock Island Passage to Sturgeon Bay WI- 831 AM CDT Sun May 31 2026 .TODAY...S wind 5 to 10 kts. Waves 2 ft or less. Sunny. .TONIGHT...S wind around 5 kts early in the evening becoming variable 10 kts or less, then becoming NE around 5 kts after midnight. Waves 2 ft or less. Mostly clear. .MONDAY...NE wind 10 to 15 kts. Waves 1 to 3 ft. Mostly sunny. .MONDAY NIGHT...NE wind 10 to 15 kts. Waves 1 to 3 ft. Clear. $$ LMZ542-543-311600- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 831 AM CDT Sun May 31 2026 .TODAY...SE wind 5 to 10 kts. Waves 2 ft or less. Mostly sunny. .TONIGHT...S wind around 5 kts early in the evening becoming variable 10 kts or less, then becoming N around 5 kts after midnight. Waves 2 ft or less. Partly cloudy. .MONDAY...NE wind 10 to 15 kts. Waves 2 ft or less. Partly cloudy in the morning then clearing. .MONDAY NIGHT...NE wind 10 to 15 kts. Waves 2 to 4 ft. Clear. $$ See Lake Michigan Open Lake Forecast for Tuesday through Thursday. Wave height forecast is for ice free areas.