Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Last Update: 936 PM EDT Thu Sep 17 2026

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Grand Rapids, MI Local Forecast Office

11NM SSW Grand Haven MI

Marine Zone Forecast

Through Early Evening
Northeast winds around 10 knots. Mostly cloudy. A slight chance of drizzle. Waves less than 1 foot.
Tonight
Northeast winds 10 to 15 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 foot or less.
Friday
East winds 10 to 15 knots. Mostly sunny. Waves around 1 foot.
Friday Night
East winds 10 to 20 knots. Rain showers likely and a slight chance of thunderstorms. Waves 1 to 2 feet.
Saturday
East winds 15 to 25 knots. Rain showers and a slight chance of thunderstorms. Waves 1 to 3 feet.
Saturday Night
East winds 15 to 20 knots. Rain showers likely and a chance of thunderstorms. Waves around 1 foot.
Sunday
Northeast winds 15 to 20 knots. Mostly cloudy with a chance of rain showers. Waves 1 to 2 feet.
Monday
East winds to 30 knots. Mostly cloudy with a chance of rain showers. Waves 2 to 4 feet.
Tuesday
Northeast winds 20 to 25 knots. Partly sunny. Waves 1 to 3 feet.



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936 PM EDT Thu Sep 17 2026
 
 

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