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18NM WSW Grand Haven MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 5:54 pm CDT Aug 21, 2025
Forecast Valid: 8pm CDT Aug 21, 2025-6pm CDT Aug 28, 2025

Tonight

N wind 7 to 12 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 to 2 ft.

Friday

W wind around 6 kt. Sunny. Waves 1 ft or less.

Friday Night

SW wind 5 to 14 kt. A slight chance of showers after 1am. Waves 1 to 2 ft.

Saturday

W wind 14 to 16 kt. A slight chance of showers and thunderstorms before 1pm. Waves around 3 ft.

Saturday Night

WNW wind 17 to 19 kt. Mostly clear. Waves 3 to 5 ft.

Sunday

WNW wind around 19 kt. Sunny. Waves around 5 ft.

Sunday Night

NW wind around 20 kt. A chance of showers before 1am. Waves 5 to 6 ft.

Monday

NW wind 18 to 21 kt. Mostly sunny. Waves 5 to 6 ft.

Monday Night

NNW wind 14 to 16 kt. Partly cloudy. Waves 3 to 4 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.