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Grand Rapids, MI Local Forecast Office

10NM SW South Haven MI

Marine Zone Forecast

Through Early Evening

Southwest winds to 30 knots. Mostly sunny. Waves 6 to 8 feet.

Tonight

West winds 15 to 25 knots backing south 10 to 15 knots after midnight. Cloudy. Waves 4 to 6 feet subsiding to 1 to 3 feet.

Tuesday

South winds 10 to 20 knots increasing to 30 knots in the late morning and afternoon. Partly sunny. Waves 1 to 3 feet building to 5 to 7 feet.

Tuesday Night

Southwest gales to 35 knots veering west after midnight. Mostly cloudy. Waves 6 to 9 feet.

Wednesday

West winds to 30 knots becoming southwest 10 to 15 knots. Mostly sunny. Waves 5 to 7 feet subsiding to 2 to 4 feet early in the afternoon.

Wednesday Night

South winds to 30 knots increasing to gales to 35 knots after midnight. Mostly cloudy. Waves 2 to 3 feet building to 5 to 7 feet in the late evening and overnight.

Thursday

South gales to 35 knots veering southwest gales to 45 knots early in the afternoon. Rain showers. Waves 6 to 9 feet building to 9 to 13 feet early in the afternoon.

Friday

Northwest gales to 40 knots becoming west 20 to 25 knots in the late morning and afternoon. Mostly cloudy. Waves 10 to 14 feet subsiding to 5 to 7 feet early in the afternoon.

Saturday

South gales to 35 knots veering southwest to 30 knots in the late morning and afternoon. Mostly cloudy. Waves 5 to 7 feet.