FZUS53 KGRB 201457 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 957 AM 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- 957 AM CDT Sat Jun 20 2026 .THIS AFTERNOON...NW wind 5 to 10 kts backing S early in the afternoon. Waves 2 ft or less. A chance of showers and thunderstorms in the afternoon. .TONIGHT...NE wind 5 to 10 kts backing N in the late evening and overnight. Waves 2 ft or less. A slight chance of showers in the evening. .SUNDAY...E wind 5 to 10 kts. Waves 2 ft or less. Partly sunny. .SUNDAY NIGHT...NE wind 10 to 15 kts backing N after midnight. Waves 2 ft or less. Mostly cloudy in the evening then becoming partly cloudy. $$ LMZ541>543-202200- Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 957 AM CDT Sat Jun 20 2026 .THIS AFTERNOON...NW wind 5 to 10 kts backing S early in the afternoon. Waves 2 ft or less. A slight chance of showers and thunderstorms in the afternoon. .TONIGHT...W wind around 5 kts veering N in the late evening and overnight. Waves 2 ft or less. A slight chance of showers in the evening. .SUNDAY...E wind around 5 kts becoming 5 to 10 kts in the late morning and afternoon. Waves 2 ft or less. Mostly cloudy. .SUNDAY NIGHT...NE wind 10 to 15 kts. Waves 2 to 4 ft. Mostly cloudy in the evening then becoming partly cloudy. $$ See Lake Michigan Open Lake Forecast for Monday through Wednesday.