FZUS53 KGRB 200556 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 1256 AM CDT Sat Jun 20 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-201000- 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- 1256 AM CDT Sat Jun 20 2026 .REST OF THE NIGHT...SW wind 5 to 10 kts veering W after midnight. Waves 2 ft or less. A slight chance of thunderstorms late in the evening. A chance of showers. .SATURDAY...NW wind 5 to 10 kts backing W in the late morning and afternoon. Waves 2 ft or less. A chance of showers and a slight chance of thunderstorms in the afternoon. .SATURDAY NIGHT...N wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy. .SUNDAY...NE wind around 5 kts veering E in the late morning and afternoon. Waves 2 ft or less. Partly cloudy. $$ LMZ541>543-201000- Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 1256 AM CDT Sat Jun 20 2026 .REST OF THE NIGHT...W wind 5 to 10 kts. Waves 2 ft or less. A chance of thunderstorms late in the evening. A chance of showers. .SATURDAY...W wind 5 to 10 kts backing SW early in the afternoon. Waves 2 ft or less. A slight chance of showers and thunderstorms in the afternoon. .SATURDAY NIGHT...NW wind 5 to 10 kts veering N in the late evening and overnight. Waves 2 ft or less. Partly cloudy in the evening then becoming mostly cloudy. .SUNDAY...E wind 5 to 10 kts. Waves 2 ft or less. Partly sunny. $$ See Lake Michigan Open Lake Forecast for Monday through Wednesday.