Hazardous Weather Conditions

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Detroit/Pontiac, MI Local Forecast Office

12NM N Port Sanilac MI

Marine Point Forecast

[NOTICE]

Tonight
Low: 10 °C
⇑SSE 55km/h
2-3m

Gale Warning
Monday
High: 8 °C
SSW 47km/h
1-2m

Gale Warning
Monday Night
Low: -9 °C
WNW 55km/h
1-2m

Gale Warning
Tuesday
High: -4 °C
WNW 45km/h⇓
1-2m

Gale Warning
Tuesday Night
Low: -7 °C
WNW 26km/h
< 1m
Wednesday
High: 2 °C
S 35km/h
< 1m
Wednesday Night
Low: 0 °C
S 27km/h
1m
Thursday
High: 4 °C
SSW 21km/h
< 1m
Thursday Night
Low: 1 °C
NNW 16km/h
< 1m

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:13 pm EDT Mar 15, 2026
Forecast Valid: 10pm EDT Mar 15, 2026-6pm EDT Mar 22, 2026

View Nearby Observations

Detailed Forecast

Tonight

SSE wind 34 to 44 km/h becoming SSE 45 to 55 km/h after midnight. Winds could gust as high as 75 km/h. Rain. Waves 2 to 3 m.

Monday

SSW wind 45 to 47 km/h, with gusts as high as 60 km/h. A chance of rain before 8am, then a slight chance of snow after 2pm. Waves 1 to 2 m.

Monday Night

WNW wind 50 to 55 km/h, with gusts as high as 70 km/h. A chance of snow. Widespread freezing spray after 10pm. Waves 1 to 2 m.

Tuesday

WNW wind 40 to 45 km/h decreasing to 32 to 37 km/h in the afternoon. Winds could gust as high as 60 km/h. Widespread freezing spray before 1pm. Mostly cloudy. Waves 1 to 2 m.

Tuesday Night

WNW wind 18 to 26 km/h, with gusts as high as 34 km/h. Mostly cloudy. Waves 1 m or less.

Wednesday

S wind 26 to 35 km/h, with gusts as high as 47 km/h. Mostly cloudy. Waves 1 m or less.

Wednesday Night

S wind 24 to 27 km/h, with gusts as high as 35 km/h. A chance of snow after 2am. Waves around 1 m.

Thursday

SSW wind 14 to 21 km/h becoming WNW in the afternoon. A chance of rain and snow before 2pm. Waves 1 m or less.

Thursday Night

NNW wind 11 to 16 km/h. Mostly cloudy. Waves 1 m 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.