Coastal Waters Forecast for 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 (LMZ521) (Text-Only)
NWS Forecast for: 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 (LMZ521)
Issued by: National Weather Service Green Bay, WI
Last Update: 1143 AM CDT Fri Aug 7 2026
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This Afternoon: SW wind 10 to 15 kts. Waves 1 to 3 ft. Partly sunny.

Tonight: SW wind 10 to 15 kts veering W after midnight. Waves 1 to 3 ft. A chance of thunderstorms in the evening. A chance of showers.

Saturday: NW wind 10 to 15 kts backing W 5 to 10 kts early in the afternoon. Waves 2 ft or less. Sunny.

Saturday Night: SW wind 5 to 10 kts. Waves 2 ft or less. Mostly clear.







Zone Forecast: 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 (LMZ521)

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