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: 11:14 pm EDT Apr 16, 2026
Forecast Valid: 11pm EDT Apr 16, 2026-6pm EDT Apr 23, 2026

Overnight

N wind around 9 kt. Widespread dense fog, mainly after 2am. Waves around 1 ft.

Friday

N wind around 6 kt becoming variable and less than 5 kt. Widespread dense fog, mainly before 8am. Waves 1 ft or less.

Friday Night

SSE wind 10 to 19 kt. A chance of showers after 2am. Waves 1 ft or less building to 4 ft.

Saturday

S wind 19 to 22 kt becoming SW in the afternoon. Showers, mainly after 8am. Waves 4 to 5 ft.

Saturday Night

WNW wind 17 to 19 kt. Showers likely, mainly before 8pm. Waves 3 to 4 ft.

Sunday

WNW wind around 19 kt. Mostly sunny. Waves around 4 ft.

Sunday Night

NW wind 20 to 23 kt. Mostly cloudy. Waves 5 to 7 ft. occasionally to 9ft.

Monday

NW wind 10 to 20 kt. Mostly sunny. Waves 6 ft subsiding to 3 ft.

Monday Night

S wind 8 to 13 kt increasing to 15 to 20 kt after midnight. Partly cloudy. Waves 2 to 4 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.