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18NM ENE Port Sanilac MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 2:35 am EDT Apr 2, 2026
Forecast Valid: 2am EDT Apr 2, 2026-6pm EDT Apr 8, 2026

Thursday

E wind around 16 kt. Rain and thunderstorms, mainly before 4pm. Waves 2 to 3 ft.

Thursday Night

SE wind 19 to 21 kt becoming S after midnight. Rain and thunderstorms before 2am, then a chance of rain. Waves 4 to 6 ft. occasionally to 8ft.

Friday

SSW wind 11 to 18 kt becoming WNW in the afternoon. Mostly sunny. Waves 6 ft subsiding to 3 ft.

Friday Night

NNE wind 11 to 14 kt. A chance of rain after 2am. Waves around 2 ft.

Saturday

ESE wind 18 to 21 kt becoming SSE in the afternoon. Rain, with thunderstorms also possible after 5pm. Waves 3 to 4 ft.

Saturday Night

WSW wind 18 to 20 kt. Rain and possibly a thunderstorm before 8pm, then a chance of rain between 8pm and 2am. Waves 4 to 5 ft.

Sunday

W wind 21 to 23 kt. Mostly cloudy. Waves around 5 ft.

Sunday Night

WNW wind 16 to 19 kt. Mostly cloudy. Waves around 5 ft.

Monday

WNW wind 11 to 15 kt becoming N in the afternoon. Partly sunny. 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.