| NWS Forecast for: Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM offshore to mid lake (LMZ563) Issued by: National Weather Service Green Bay, WI Last Update: 911 PM CDT Sun Apr 5 2026 | |
| Rest Of Tonight: Northwest winds 10 to 15 kt increasing to 10 to 20 kt. Scattered rain showers late this evening. Waves 1 to 3 ft. Monday: Northwest winds 10 to 20 kt becoming north to 30 kt. Chance of snow showers. Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft. Monday Night: North winds to 30 kt diminishing to 10 to 20 kt. Waves 6 to 9 ft occasionally to 12 ft. Tuesday: Northwest winds 10 to 15 kt backing to southwest 10 to 20 kt. Waves 3 to 5 ft subsiding to 1 to 3 ft. Tuesday Night: South winds 10 to 20 kt increasing to 15 to 25 kt. Waves 1 to 3 ft building to 4 to 6 ft occasionally to 8 ft. Wednesday: South winds to 30 kt increasing to gales to 35 kt. Chance of rain showers in the morning. Waves 8 to 12 ft occasionally to 16 ft building to 10 to 14 ft occasionally to 18 ft. Wednesday Night: South gales to 40 kt. Rain showers. Waves 12 to 16 ft occasionally to 21 ft. Thursday: Southwest winds to 30 kt diminishing to 15 to 25 kt. Chance of rain showers. Waves 8 to 12 ft occasionally to 16 ft subsiding to 5 to 8 ft occasionally to 10 ft. Friday: Northwest winds 10 to 15 kt becoming north. Waves 2 to 4 ft. | |
| Zone Forecast: Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM offshore to mid lake (LMZ563) | |
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