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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: 4:25 pm EDT Apr 5, 2026
Forecast Valid: 6pm EDT Apr 5, 2026-6pm EDT Apr 12, 2026

Tonight

WNW wind 10 to 19 kt. A chance of snow showers, mainly after 2am. Waves 3 to 4 ft.

Monday

WNW wind around 9 kt becoming N in the afternoon. A chance of snow showers, mainly after 2pm. Waves 1 to 2 ft.

Monday Night

NNW wind 19 to 26 kt. A chance of snow showers before 4am. Waves 2 ft building to 9 ft.

Tuesday

NNW wind 18 to 23 kt decreasing to 10 to 15 kt in the afternoon. Mostly cloudy, then gradually becoming sunny. Waves 8 ft subsiding to 4 ft.

Tuesday Night

ESE wind 6 to 13 kt becoming S after midnight. Mostly clear. Waves 1 to 2 ft.

Wednesday

SSE wind 16 to 19 kt. Mostly sunny. Waves 2 to 3 ft.

Wednesday Night

SSE wind 20 to 26 kt. Mostly cloudy. Waves 4 ft building to 8 ft.

Thursday

S wind 22 to 26 kt. A chance of rain. Waves 6 to 8 ft. occasionally to 10ft.

Thursday Night

SW wind 14 to 17 kt. A chance of rain. Waves 2 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.