For More Weather Information:

18NM ENE Port Sanilac MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 9:24 am EST Nov 20, 2025
Forecast Valid: 11am EST Nov 20, 2025-6pm EST Nov 26, 2025

Today

SSW wind 10 to 12 kt. Partly sunny. Waves around 1 ft.

Tonight

SSW wind around 16 kt, with gusts as high as 22 kt. A chance of rain, mainly after 1am. Waves 2 to 3 ft.

Friday

W wind 13 to 16 kt. Cloudy, then gradually becoming mostly sunny. Waves around 2 ft.

Friday Night

NNW wind 14 to 16 kt. Mostly cloudy. Waves 2 to 4 ft.

Saturday

NNW wind 8 to 13 kt. Partly sunny. Waves 1 to 3 ft.

Saturday Night

SW wind 8 to 16 kt. Mostly cloudy. Waves 1 to 2 ft.

Sunday

SW wind 15 to 18 kt becoming W in the afternoon. Mostly sunny. Waves around 3 ft.

Sunday Night

WNW wind 14 to 17 kt. Partly cloudy. Waves 2 to 3 ft.

Monday

WNW wind 11 to 13 kt becoming S in the afternoon. Mostly sunny. Waves 1 to 2 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.