| NWS Forecast for: Lake Michigan from St Joseph to South Haven MI 5NM offshore to Mid Lake (LMZ878) Issued by: National Weather Service Grand Rapids, MI Last Update: 906 AM CDT Tue Sep 2 2025 | |
Rest Of Today: Southwest winds 5 to 10 kt increasing to 10 to 15 kt. Waves 1 to 2 ft. Tonight: South winds 10 to 15 kt becoming southwest 10 to 20 kt. Waves 2 to 4 ft. Wednesday: Southwest winds 10 to 20 kt becoming west. Chance of showers in the morning, then showers with a chance of thunderstorms in the afternoon. Waves 4 to 6 ft occasionally to 8 ft. Wednesday Night: Northwest winds 15 to 25 kt. Chance of showers in the evening. Waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to 10 ft. Thursday: Northwest winds 15 to 25 kt becoming west. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft occasionally to 8 ft. Thursday Night: Southwest winds 10 to 20 kt increasing to 30 kt. Waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to 10 ft. Friday: West winds to 30 kt. Waves 7 to 10 ft occasionally to 13 ft. Saturday: West winds 10 to 20 kt. Waves 4 to 6 ft occasionally to 8 ft. | |
| Zone Forecast: Lake Michigan from St Joseph to South Haven MI 5NM offshore to Mid Lake (LMZ878) | |
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