Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Last Update: 516 AM EDT Wed Apr 15 2026

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Grand Rapids, MI Local Forecast Office

7NM SW Saugatuck MI

Marine Zone Forecast

Today
Southwest winds 15 to 20 knots. Patchy fog in the morning. Rain showers likely in the morning, then rain showers likely and a chance of thunderstorms in the afternoon. Waves 2 to 3 feet.
Tonight
South winds 10 to 15 knots. Rain showers and a chance of thunderstorms. Waves 1 to 3 feet.
Thursday
Southwest winds 10 to 15 knots veering west early in the afternoon. Rain showers likely and a chance of thunderstorms. Waves 1 to 2 feet.
Thursday Night
Northwest winds 10 to 15 knots. Partly cloudy with rain showers likely. Waves 1 to 2 feet.
Friday
South winds 5 to 15 knots. Partly sunny. Waves 1 foot or less.
Saturday
Southwest winds to 30 knots veering west early in the afternoon. Rain showers and a chance of thunderstorms. Waves 4 to 6 feet.
Sunday
West gales to 35 knots veering northwest to 30 knots early in the afternoon. Partly sunny. Waves 7 to 10 feet.



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516 AM EDT Wed Apr 15 2026
 
 

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