| NWS Forecast for: Rock Island Passage to Sturgeon Bay WI (LMZ541) Issued by: National Weather Service Green Bay, WI Last Update: 623 AM CDT Sat Sep 19 2026 |  |
Today: SE wind 10 to 15 kts. Waves 2 to 4 ft. A chance of showers. Tonight: NE wind 10 to 15 kts. Waves 1 to 3 ft. A chance of showers in the evening. Sunday: NE wind 15 to 25 kts. Waves 3 to 5 ft. Partly cloudy in the morning then becoming mostly sunny. A small craft advisory may be needed. Sunday Night: NE wind 15 to 25 kts. Waves 3 to 5 ft. Mostly cloudy. | |
| Zone Forecast: Rock Island Passage to Sturgeon Bay WI (LMZ541) | |
Visit your local NWS office at: https://www.weather.gov/grb |