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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: 4:24 pm EDT Apr 6, 2026
Forecast Valid: 10pm EDT Apr 6, 2026-6pm EDT Apr 13, 2026

Tonight

NNW wind 21 to 31 kt. A chance of snow showers. Waves 5 ft building to 10 ft.

Tuesday

N wind 18 to 23 kt decreasing to 11 to 16 kt in the afternoon. Mostly cloudy, then gradually becoming sunny. Waves 8 ft subsiding to 3 ft.

Tuesday Night

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

Wednesday

SSE wind 15 to 18 kt. Mostly sunny. Waves 2 to 3 ft.

Wednesday Night

S wind 20 to 25 kt. Mostly cloudy. Waves 4 to 6 ft. occasionally to 8ft.

Thursday

S wind 19 to 24 kt. A chance of rain. Waves around 6 ft.

Thursday Night

SW wind 10 to 14 kt becoming S after midnight. A chance of rain. Waves 2 to 4 ft.

Friday

SE wind 10 to 12 kt becoming WNW in the afternoon. Rain likely. Waves 1 to 2 ft.

Friday Night

N wind around 12 kt. A chance of rain. Waves around 1 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.