For More Weather Information:

4NM E Port Sanilac MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 3:13 pm EDT Apr 30, 2025
Forecast Valid: 4pm EDT Apr 30, 2025-6pm EDT May 6, 2025

This Afternoon

ENE wind around 7 kt. Mostly sunny. Waves around 1 ft.

Tonight

ENE wind 5 to 7 kt becoming variable and less than 5 kt. A chance of showers after 2am. Waves 1 ft or less.

Thursday

ESE wind 8 to 12 kt. Showers, with thunderstorms also possible after 5pm. Waves 1 to 2 ft.

Thursday Night

SSW wind 11 to 13 kt becoming W after midnight. Showers likely and possibly a thunderstorm. Waves 1 to 2 ft.

Friday

W wind around 12 kt. A chance of showers before 8am, then a chance of showers after 2pm. Waves around 1 ft.

Friday Night

NNW wind around 9 kt. A chance of rain before 8pm. Waves around 1 ft.

Saturday

N wind around 12 kt. Partly sunny. Waves 1 to 2 ft.

Saturday Night

N wind 8 to 10 kt. Partly cloudy. Waves 1 ft or less.

Sunday

NNW wind 10 to 12 kt. Mostly sunny. Waves 1 ft or less.

See Lake Huron Open Lake Forecast for days 3 through 5.

*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.