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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: 7:13 pm EDT Mar 18, 2026
Forecast Valid: 9pm EDT Mar 18, 2026-6pm EDT Mar 25, 2026

Tonight

S wind 14 to 18 kt. Mostly cloudy. Waves 3 to 4 ft.

Thursday

W wind 7 to 10 kt. Partly sunny. Waves 1 ft or less.

Thursday Night

N wind 5 to 9 kt becoming S after midnight. Increasing clouds. Waves 1 ft or less.

Friday

S wind 13 to 15 kt becoming SW in the afternoon. Rain likely, mainly before 2pm. Waves around 1 ft.

Friday Night

NNW wind around 11 kt. A chance of rain before 8pm. Waves around 1 ft.

Saturday

WNW wind around 12 kt becoming WSW in the afternoon. Partly sunny. Waves around 2 ft.

Saturday Night

S wind 14 to 19 kt becoming W after midnight. A chance of rain and snow after 2am. Waves 2 to 3 ft.

Sunday

NNE wind 23 to 25 kt. A chance of rain and snow before 2pm. Waves 4 ft building to 7 ft.

Sunday Night

NNE wind 23 to 25 kt. Mostly cloudy. Waves around 7 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.