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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: 10:14 pm EDT Apr 18, 2026
Forecast Valid: 10pm EDT Apr 18, 2026-6pm EDT Apr 25, 2026

Tonight

W wind 11 to 15 kt, with gusts as high as 22 kt. Partly cloudy. Waves 1 to 2 ft.

Sunday

W wind 10 to 13 kt. A chance of snow showers after 1pm, mixing with rain after 3pm. Waves around 2 ft.

Sunday Night

NNW wind 17 to 20 kt. Mostly cloudy. Waves 4 ft building to 7 ft.

Monday

NNW wind 9 to 17 kt. Mostly sunny. Waves 3 to 5 ft.

Monday Night

S wind 7 to 12 kt increasing to 14 to 19 kt after midnight. Partly cloudy. Waves 1 to 3 ft.

Tuesday

S wind 17 to 24 kt. Mostly sunny. Waves 4 to 6 ft. occasionally to 8ft.

Tuesday Night

SSW wind 13 to 15 kt becoming N in the evening. Mostly cloudy. Waves around 2 ft.

Wednesday

N wind 10 to 12 kt. Mostly sunny. Waves around 2 ft.

Wednesday Night

N wind around 7 kt becoming SE after midnight. Mostly clear. 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.