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: 913 AM CDT Tue Jun 16 2026




This Afternoon: S wind 10 to 15 kts. Waves 2 ft or less. A chance of showers. A chance of thunderstorms in the afternoon.

Tonight: NW wind 5 to 10 kts backing W after midnight. Waves 2 ft or less. A slight chance of showers and thunderstorms in the evening.

Wednesday: SW wind 5 to 10 kts backing SE 10 to 15 kts mid-day, then increasing to 15 to 25 kts early in the afternoon. Waves 1 to 3 ft. A chance of showers in the morning, then showers likely in the afternoon. A small craft advisory may be needed.

Wednesday Night: NE wind 15 to 25 kts backing N after midnight. Waves 3 to 5 ft. Rain showers.







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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