| NWS Forecast for: Rock Island Passage to Sturgeon Bay WI (LMZ541) Issued by: National Weather Service Green Bay, WI Last Update: 836 PM CDT Thu Mar 19 2026 | |
| Tonight: SE wind 5 to 10 kts veering SW 10 to 15 kts after midnight. Waves 1 to 3 ft. A chance of light rain. Friday: NW wind 5 to 10 kts veering N early in the afternoon. Waves 1 to 3 ft. Partly sunny. Friday Night: S wind 5 to 10 kts. Waves 2 ft or less. Mostly cloudy. Saturday: S wind 10 to 15 kts. Waves 1 to 3 ft. Mostly cloudy. | |
| Zone Forecast: Rock Island Passage to Sturgeon Bay WI (LMZ541) | |
Visit your local NWS office at: https://www.weather.gov/grb |