Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

Last Update: 351 PM EDT Sun Sep 6 2026

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Grand Rapids, MI Local Forecast Office

4NM W Muskegon MI

Marine Zone Forecast

Through Early Evening

Northwest winds 5 to 15 knots. Sunny. Waves 1 foot or less.

Tonight

North winds 10 to 15 knots veering east after midnight. Partly cloudy. Waves around 1 foot.

Labor Day

Southeast winds 5 to 15 knots veering west early in the afternoon. Sunny. Waves 1 foot or less.

Monday Night

North winds 5 to 15 knots veering east in the late evening and early morning, then veering southeast 15 to 20 knots after midnight. Partly cloudy. Waves 1 to 2 feet.

Tuesday

South winds 10 to 20 knots. Partly sunny. Waves 1 to 3 feet.

Tuesday Night

South winds 10 to 20 knots veering southwest 20 to 25 knots after midnight. Cloudy with rain showers. Waves 1 to 3 feet building to 3 to 5 feet in the late evening and overnight.

Wednesday

Southwest winds to 30 knots. Rain showers. Waves 5 to 7 feet.

Thursday

Northwest winds 15 to 25 knots. Mostly sunny. Waves 4 to 6 feet.

Friday

South winds 10 to 20 knots. Sunny. Waves 2 to 4 feet.