News Headlines

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: 6:13 am EDT Mar 20, 2026
Forecast Valid: 9am EDT Mar 20, 2026-6pm EDT Mar 26, 2026

Today

S wind 13 to 18 kt becoming NW in the afternoon. Showers, mainly before noon. Waves 2 to 4 ft.

Tonight

NNW wind 10 to 14 kt. Mostly cloudy. Waves 1 to 2 ft.

Saturday

NNW wind 7 to 9 kt becoming S in the afternoon. Partly sunny. Waves 1 ft or less.

Saturday Night

S wind 10 to 14 kt. A chance of rain after 2am. Waves 1 to 2 ft.

Sunday

SSW wind 14 to 16 kt becoming N in the afternoon. A chance of rain. Waves 2 to 3 ft.

Sunday Night

NNE wind around 20 kt. Mostly cloudy. Waves around 4 ft.

Monday

NNW wind 17 to 19 kt. Partly sunny. Waves around 4 ft.

Monday Night

N wind 9 to 13 kt becoming NE after midnight. Partly cloudy. Waves 2 to 3 ft.

Tuesday

S wind 14 to 16 kt. Partly sunny. Waves 2 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.