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: 2:24 pm EDT Apr 7, 2026
Forecast Valid: 2pm EDT Apr 7, 2026-6pm EDT Apr 13, 2026

This Afternoon

N wind 12 to 14 kt. Mostly sunny. Waves 4 to 5 ft.

Tonight

E wind 6 to 13 kt becoming SSE after midnight. Clear. Waves 1 to 2 ft.

Wednesday

SSE wind 15 to 18 kt. Increasing clouds. Waves 2 to 3 ft.

Wednesday Night

S wind 21 to 25 kt, with gusts as high as 31 kt. Partly cloudy. Waves 4 to 6 ft. occasionally to 8ft.

Thursday

S wind 16 to 23 kt. A chance of rain between 8am and 2pm. Waves 6 ft subsiding to 3 ft.

Thursday Night

WNW wind 9 to 12 kt becoming NE after midnight. A chance of rain after 2am. Waves 1 to 2 ft.

Friday

N wind around 9 kt. Rain likely, mainly between 8am and 2pm. Waves around 1 ft.

Friday Night

N wind 7 to 9 kt. Partly cloudy. Waves around 1 ft.

Saturday

N wind 5 to 7 kt. Sunny. Waves around 1 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.