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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 Mar 19, 2026
Forecast Valid: 4pm EDT Mar 19, 2026-6pm EDT Mar 25, 2026

This Afternoon

Variable winds 5 kt or less. Partly sunny. Waves 1 ft or less.

Tonight

ENE wind 6 to 15 kt becoming SSE after midnight. A chance of rain, mainly after 5am. Waves 1 to 2 ft.

Friday

S wind 13 to 18 kt becoming NNW in the afternoon. Rain likely before 1pm. Waves 2 to 3 ft.

Friday Night

N wind 8 to 14 kt. Mostly cloudy. Waves 1 to 2 ft.

Saturday

NNW wind 5 to 7 kt becoming S in the afternoon. Mostly cloudy. Waves 1 ft or less.

Saturday Night

S wind 10 to 13 kt. A chance of rain after 2am. Waves 1 ft or less.

Sunday

SSE wind 15 to 17 kt becoming NE in the morning. Rain likely, mainly between 8am and 2pm. Waves 2 to 3 ft.

Sunday Night

N wind 20 to 22 kt. A chance of rain. Waves 4 to 5 ft.

Monday

NNW wind 18 to 23 kt. Partly sunny. Waves 5 to 6 ft. occasionally to 8ft.

*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.