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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 am EDT Mar 19, 2026
Forecast Valid: 5am EDT Mar 19, 2026-6pm EDT Mar 25, 2026

Today

WSW wind 7 to 11 kt becoming NW in the afternoon. Partly sunny. Waves 1 to 2 ft.

Tonight

ENE wind 5 to 11 kt becoming SSE after midnight. A slight chance of rain after 5am. Waves 1 ft or less.

Friday

S wind 12 to 17 kt becoming W in the afternoon. Rain likely, mainly between 8am and 2pm. Waves around 2 ft.

Friday Night

N wind around 10 kt. Mostly cloudy. Waves around 1 ft.

Saturday

WNW wind around 11 kt becoming WSW in the afternoon. Partly sunny. Waves 1 to 2 ft.

Saturday Night

SSE wind 12 to 14 kt. A chance of rain and snow between 2am and 5am, then a chance of rain after 5am. Waves 2 to 4 ft.

Sunday

E wind 16 to 20 kt becoming N in the afternoon. A chance of rain before 8am, then a chance of rain and snow. Waves 6 to 7 ft. occasionally to 9ft.

Sunday Night

NNE wind 22 to 24 kt. Mostly cloudy. Waves around 6 ft.

Monday

NNW wind 19 to 24 kt. Partly sunny. Waves 6 ft subsiding to 3 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.