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 pm EDT Sep 15, 2026
Forecast Valid: 8pm EDT Sep 15, 2026-6pm EDT Sep 22, 2026

Tonight

SSW wind 7 to 9 kt becoming NNW after midnight. Mostly cloudy. Waves 1 ft or less.

Wednesday

NNE wind around 11 kt. Partly sunny. Waves 1 to 2 ft.

Wednesday Night

ENE wind 6 to 10 kt. A chance of showers before 3am. Waves 1 ft or less.

Thursday

N wind 6 to 9 kt. Partly sunny. Waves 1 ft or less.

Thursday Night

N wind 7 to 12 kt. Partly cloudy. Waves 1 ft or less.

Friday

NNE wind around 12 kt. Mostly sunny. Waves around 2 ft.

Friday Night

NE wind around 14 kt becoming ESE after midnight. A chance of showers after 2am. Waves around 2 ft.

Saturday

ESE wind 15 to 17 kt, with gusts as high as 24 kt. Showers. Waves around 3 ft.

Saturday Night

ENE wind 13 to 17 kt. Showers likely. Waves 2 to 3 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.