Coastal Waters Forecast for Rock Island Passage to Sturgeon Bay WI (LMZ541) (Text-Only)
NWS Forecast for: Rock Island Passage to Sturgeon Bay WI (LMZ541)
Issued by: National Weather Service Green Bay, WI
Last Update: 836 AM CDT Thu May 21 2026


Today: NE wind 10 to 15 kts. Waves 2 ft or less. Partly cloudy.

Tonight: NE wind 10 to 15 kts veering E in the late evening and overnight. Waves 1 to 3 ft. Mostly clear in the evening then becoming mostly cloudy.

Friday: E wind 10 to 15 kts backing NE 15 to 25 kts early in the afternoon. Waves 1 to 3 ft building to 2 to 4 ft in the afternoon. Mostly cloudy in the morning then becoming mostly sunny. A small craft advisory may be needed.

Friday Night: E wind 15 to 25 kts. Waves 3 to 5 ft. Rain showers likely after midnight.







Zone Forecast: Rock Island Passage to Sturgeon Bay WI (LMZ541)

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