For More Weather Information:

12NM N Port Sanilac MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 4:24 am EDT Sep 19, 2026
Forecast Valid: 4am EDT Sep 19, 2026-6pm EDT Sep 25, 2026

Saturday

SE wind 9 to 12 kt. A slight chance of showers after 11am. Waves 1 to 2 ft.

Saturday Night

ESE wind 9 to 12 kt. Showers likely, mainly between 3am and 5am. Waves 1 to 2 ft.

Sunday

NNE wind 12 to 17 kt. A chance of showers before 7am. Waves 1 to 3 ft.

Sunday Night

NE wind 18 to 21 kt. Partly cloudy. Waves 4 to 5 ft.

Monday

ENE wind 15 to 18 kt. Mostly cloudy. Waves 3 to 4 ft.

Monday Night

E wind 18 to 21 kt. Mostly cloudy. Waves around 4 ft.

Tuesday

ENE wind 17 to 19 kt. Mostly sunny. Waves 3 to 4 ft.

Tuesday Night

E wind 23 to 25 kt. A chance of showers. Waves around 5 ft.

Wednesday

E wind 18 to 21 kt. A chance of showers. Waves 4 to 5 ft.

See Lake Huron Open Lake Forecast for days 3 through 5.

*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.