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Grand Rapids, MI Local Forecast Office

10NM SW South Haven MI

Marine Point Forecast

[NOTICE]

Today
High: 23 °C
SSW 34km/h⇓
1m

Small Craft Advisory
Tonight
Low: 9 °C
⇑NNW 29km/h
< 1m

Small Craft Advisory
Wednesday
High: 13 °C
N 32km/h
1m
Wednesday Night
Low: 8 °C
N 27km/h
< 1m
Thursday
High: 17 °C
E 23km/h
< 1m
Thursday Night
Low: 10 °C
E 23km/h
< 1m
Friday
High: 18 °C
ENE 26km/h
< 1m
Friday Night
Low: 11 °C
ENE 26km/h
< 1m
Saturday
High: 18 °C
NE 18km/h
< 1m

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 7:03 am CDT May 19, 2026
Forecast Valid: 7am CDT May 19, 2026-6pm CDT May 25, 2026

View Nearby Observations

Detailed Forecast

Today

SSW wind 29 to 34 km/h becoming SW 23 to 28 km/h in the afternoon. Winds could gust as high as 50 km/h. A chance of showers before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Waves around 1 m.

Tonight

NNW wind 13 to 18 km/h increasing to 24 to 29 km/h after midnight. Winds could gust as high as 39 km/h. A chance of showers and thunderstorms, mainly before 7pm. Waves 1 m or less.

Wednesday

N wind 24 to 32 km/h, with gusts as high as 45 km/h. Mostly sunny. Waves around 1 m.

Wednesday Night

N wind 21 to 27 km/h becoming ENE after midnight. Winds could gust as high as 35 km/h. Partly cloudy. Waves 1 m or less.

Thursday

E wind 14 to 23 km/h, with gusts as high as 29 km/h. Mostly sunny. Waves 1 m or less.

Thursday Night

E wind 16 to 23 km/h, with gusts as high as 32 km/h. Mostly cloudy. Waves 1 m or less.

Friday

ENE wind 24 to 26 km/h, with gusts as high as 42 km/h. A chance of showers. Waves 1 m or less.

Friday Night

ENE wind 21 to 26 km/h, with gusts as high as 39 km/h. Showers likely. Waves 1 m or less.

Saturday

NE wind 13 to 18 km/h becoming NW in the afternoon. Mostly cloudy. Waves 1 m or less.

*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.