For More Weather Information:

18NM ENE Port Sanilac MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 4:13 am EST Jan 21, 2026
Forecast Valid: 4am EST Jan 21, 2026-6pm EST Jan 27, 2026

Wednesday

S wind 18 to 23 kt. Snow, mainly before 1pm. Widespread freezing spray before 2pm. Waves 3 to 5 ft.

Wednesday Night

SW wind 19 to 22 kt. A chance of snow showers, mainly before 1am. Waves 3 to 4 ft.

Thursday

W wind 23 to 27 kt. Widespread freezing spray. Partly sunny. Waves 5 to 6 ft. occasionally to 8ft.

Thursday Night

W wind around 25 kt. Widespread freezing spray. Mostly cloudy. Waves around 5 ft.

Friday

W wind 23 to 26 kt. Widespread freezing spray. Partly sunny. Waves 5 to 6 ft. occasionally to 8ft.

Friday Night

WNW wind 18 to 23 kt. Widespread freezing spray before 1am. Mostly cloudy. Waves 4 to 6 ft. occasionally to 8ft.

Saturday

WNW wind 9 to 16 kt. Partly sunny. Waves 2 to 3 ft.

Saturday Night

WSW wind 8 to 11 kt becoming SSE after midnight. Mostly cloudy. Waves around 1 ft.

Sunday

SE wind 11 to 13 kt becoming E in the afternoon. Mostly cloudy. Waves 1 to 2 ft.

Wave heights are for ice free areas.

*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.