| NWS Forecast for: Rock Island Passage to Sturgeon Bay WI (LMZ541) Issued by: National Weather Service Green Bay, WI Last Update: 654 AM CDT Wed Apr 22 2026 | |
| Today: NE wind 5 to 10 kts veering E early in the afternoon. Waves 2 ft or less. Sunny. Tonight: E wind 5 to 10 kts veering S 10 to 15 kts after midnight. Waves 2 ft or less. Clear in the evening then becoming partly cloudy. Thursday: S wind 10 to 15 kts. Waves 2 to 4 ft. Partly sunny. Thursday Night: SE wind 10 to 20 kts. Waves 3 to 5 ft. A chance of showers after midnight. A small craft advisory may be needed. | |
| Zone Forecast: Rock Island Passage to Sturgeon Bay WI (LMZ541) | |
Visit your local NWS office at: https://www.weather.gov/grb |