Chart / Forecasts

Whitehall to Pentwater MI

LMZ848 · Nearshore Marine Forecast · National Weather Service Grand Rapids MI · Issued 223 PM EDT Sat Oct 3 2026
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Forecast
Through Early Evening
South winds 10 to 15 knots. Sunny. Waves 1 to 2 feet.
Tonight
South winds 10 to 15 knots increasing to 15 to 25 knots in the late evening and overnight. Partly cloudy in the evening, then mostly cloudy with a chance of rain showers after midnight. Waves 2 to 4 feet building to 3 to 5 feet after midnight.
Sunday
Southwest winds 15 to 25 knots veering northwest in the late morning and afternoon. Mostly sunny with a chance of rain showers. Waves 4 to 6 feet.
Sunday Night
North winds 15 to 25 knots. Mostly clear. Waves 3 to 5 feet.
Monday
North winds 15 to 25 knots backing northwest 10 to 15 knots early in the afternoon. Sunny. Waves 3 to 5 feet.
Monday Night
North winds 5 to 15 knots veering southeast in the late evening and overnight. Mostly clear. Waves 1 to 3 feet.
Tuesday
South winds 10 to 20 knots increasing to 30 knots in the late morning and afternoon. Sunny. Waves 1 to 2 feet building to 4 to 6 feet in the late morning and afternoon.
Wednesday
West winds 20 to 25 knots decreasing to around 15 knots early in the afternoon. Mostly sunny. Waves 5 to 7 feet.
Thursday
Northwest winds 15 to 20 knots backing west early in the afternoon. Mostly sunny. Waves 2 to 4 feet.
Source: National Weather Service Nearshore Marine Forecast (NSH), issued 223 PM EDT Sat Oct 3 2026, valid until Sun, 04 Oct 2026 08:00 UTC. Original text · All zones