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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: 4:25 am EDT Apr 11, 2026
Forecast Valid: 7am EDT Apr 11, 2026-6pm EDT Apr 17, 2026

Today

NNW wind 5 to 10 kt becoming variable and less than 5 kt in the afternoon. Sunny. Waves around 1 ft.

Tonight

ENE wind 6 to 9 kt becoming SE after midnight. A chance of showers after 2am. Waves 1 ft or less.

Sunday

SE wind 16 to 18 kt. A chance of showers before 2pm. Waves 2 to 4 ft.

Sunday Night

SSW wind 18 to 20 kt. Showers, mainly after 2am. Waves 4 to 6 ft. occasionally to 8ft.

Monday

WSW wind 15 to 21 kt. Showers, mainly before 8am. Waves 3 to 5 ft.

Monday Night

WNW wind around 10 kt becoming ESE after midnight. A chance of showers after 2am. Waves 1 to 2 ft.

Tuesday

S wind 14 to 17 kt. Showers likely, with thunderstorms also possible after 2pm. Waves around 3 ft.

Tuesday Night

SSW wind 14 to 17 kt. Showers likely and possibly a thunderstorm. Waves 3 to 4 ft.

Wednesday

SSW wind 17 to 20 kt. A chance of showers. Waves around 5 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.