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: 356 AM CDT Wed Oct 14 2026


Early This Morning: N wind 5 to 10 kts. Waves 2 ft or less. Mostly cloudy.

Today: N wind 10 to 15 kts. Waves 1 to 3 ft. Partly sunny.

Tonight: NE wind 10 to 15 kts. Waves 2 ft or less. Mostly cloudy.

Thursday: SE wind 5 to 10 kts. Waves 2 ft or less. A chance of showers in the morning, then showers likely in the afternoon.

Thursday Night: N wind 5 to 10 kts becoming NW 15 to 25 kts in the late evening and overnight. Waves 2 ft or less building to 4 to 7 ft after midnight. Rain showers in the evening, then a chance of showers after midnight. A small craft advisory may be needed.







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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