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: 627 AM CDT Thu Sep 18 2025




Today: NE wind 5 to 10 kts. A slight chance of light showers and thunderstorms in the morning. Patchy fog in the afternoon. Waves 2 ft or less.

Tonight: NE wind 10 to 20 kts. Partly cloudy in the evening then becoming mostly cloudy. Waves 2 ft or less.

Friday: E wind 10 to 20 kts. Mostly cloudy. Waves 1 to 3 ft.

Friday Night: SE wind 10 to 20 kts. Mostly cloudy. Waves 1 to 3 ft.







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

Visit your local NWS office at: https://www.weather.gov/grb