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18NM ENE Port Sanilac MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 4:24 pm EDT Apr 22, 2026
Forecast Valid: 6pm EDT Apr 22, 2026-6pm EDT Apr 29, 2026

Tonight

NNE wind 5 to 9 kt. Mostly clear. Waves 1 ft or less.

Thursday

ENE wind 5 to 7 kt. Mostly sunny. Waves 1 ft or less.

Thursday Night

ENE wind 8 to 11 kt becoming SE in the evening. Partly cloudy. Waves 1 ft or less.

Friday

ESE wind around 15 kt. Mostly sunny. Waves around 2 ft.

Friday Night

ESE wind around 18 kt. Showers, mainly after 8pm. Waves 3 to 4 ft.

Saturday

N wind 12 to 14 kt. Showers, mainly before 8am. Waves around 2 ft.

Saturday Night

N wind 9 to 11 kt. Mostly cloudy. Waves around 1 ft.

Sunday

N wind 6 to 8 kt. Mostly sunny. Waves 1 ft or less.

Sunday Night

NNE wind 8 to 10 kt becoming ESE after midnight. Partly cloudy. Waves 1 ft or less.

*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.