Hazardous Weather Conditions

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Detroit/Pontiac, MI Local Forecast Office

12NM N Port Sanilac MI

Marine Point Forecast

[NOTICE]

Tonight
Low: 73 °F
SSW 14kt
1-2ft
Saturday
High: 80 °F
W 16kt
1-2ft

Small Craft Advisory
Saturday Night
Low: 65 °F
N 24kt
4-6ft

Small Craft Advisory
Sunday
High: 72 °F
NNE 11kt
1-2ft
Sunday Night
Low: 66 °F
SSW 10kt
< 1ft
Monday
High: 79 °F
SSW 14kt
1ft
Monday Night
Low: 69 °F
SSW 18kt
2-3ft
Tuesday
High: 79 °F
SW 16kt
1-2ft
Tuesday Night
Low: 63 °F
WNW 23kt
3-4ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:36 pm EDT Jul 17, 2026
Forecast Valid: 10pm EDT Jul 17, 2026-6pm EDT Jul 24, 2026

View Nearby Observations

Detailed Forecast

Tonight

SSW wind 12 to 14 kt. Scattered showers and thunderstorms, mainly before 1am. Widespread smoke, mainly before 2am. Waves 1 to 2 ft.

Saturday

SW wind 14 to 16 kt becoming NW in the afternoon. Winds could gust as high as 23 kt. Showers and thunderstorms likely, mainly before 2pm. Patchy smoke after 5pm. Waves 1 to 2 ft.

Saturday Night

N wind 15 to 24 kt, with gusts as high as 31 kt. Patchy smoke between 7pm and 8pm, then Patchy smoke after midnight. Waves 4 to 6 ft. occasionally to 8ft.

Sunday

NNE wind 7 to 11 kt. Sunny. Waves 1 to 2 ft.

Sunday Night

E wind 5 to 10 kt becoming SSW after midnight. Mostly clear. Waves 1 ft or less.

Monday

SSW wind 10 to 14 kt, with gusts as high as 21 kt. Mostly sunny. Waves around 1 ft.

Monday Night

SSW wind around 18 kt, with gusts as high as 25 kt. Showers, with thunderstorms also possible after 2am. Waves 2 to 3 ft.

Tuesday

SW wind 14 to 16 kt becoming W in the afternoon. Winds could gust as high as 24 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Waves 1 to 2 ft.

Tuesday Night

WNW wind 21 to 23 kt, with gusts as high as 29 kt. Showers likely, mainly before 8pm. Waves 3 to 4 ft.

*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.