FZUS53 KGRB 231158 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 658 AM CDT Sun Aug 23 2026 For waters within five nautical miles of shore on Lake Michigan LMZ522-231600- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 658 AM CDT Sun Aug 23 2026 .TODAY...N wind 10 to 15 kts. Waves 1 to 3 ft. Mostly sunny in the morning then becoming partly cloudy. .TONIGHT...N wind 10 to 15 kts backing NW 5 to 10 kts after midnight. Waves 1 to 3 ft. Clear. .MONDAY...NW wind 5 to 10 kts. Waves 2 ft or less. Sunny in the morning then becoming partly cloudy. .MONDAY NIGHT...SE wind around 5 kts veering SW after midnight. Waves 2 ft or less. Partly cloudy. $$ LMZ521-231600- Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- 658 AM CDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...N wind 10 to 20 kts. Waves 2 to 4 ft. Mostly sunny in the morning then becoming partly cloudy. .TONIGHT...NW wind 10 to 15 kts. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Clear. .MONDAY...NW wind 10 to 15 kts. Waves 1 to 3 ft. Mostly sunny. .MONDAY NIGHT...E wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy. $$ LMZ542-543-231600- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 658 AM CDT Sun Aug 23 2026 .TODAY...NW wind 10 to 20 kts. Waves 1 to 3 ft. Sunny in the morning then becoming partly cloudy. .TONIGHT...N wind 10 to 15 kts backing NW after midnight. Waves 1 to 3 ft. Clear. .MONDAY...NW wind 10 to 15 kts. Waves 2 ft or less. Mostly sunny. .MONDAY NIGHT...S wind 5 to 10 kts veering SW after midnight. Waves 2 ft or less. Partly cloudy. $$ LMZ541-231600- Rock Island Passage to Sturgeon Bay WI- 658 AM CDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...N wind 15 to 25 kts. Waves 2 to 4 ft. A chance of sprinkles in the afternoon. .TONIGHT...NW wind 10 to 15 kts. Waves 1 to 3 ft. Clear. .MONDAY...NW wind 10 to 15 kts. Waves 2 ft or less. Mostly sunny. .MONDAY NIGHT...NE wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy. $$ See Lake Michigan Open Lake Forecast for Tuesday through Thursday.