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Detroit/Pontiac, MI Local Forecast Office

6NM NNW Bay Port MI

Marine Point Forecast

[NOTICE]

Tonight
Low: 18 °F
N 16kt
1-2ft

Small Craft Advisory
Monday
High: 24 °F
N 9kt
< 1ft

Small Craft Advisory
Monday Night
Low: 19 °F
⇑S 25kt
< 1ft
Tuesday
High: 31 °F
S 29kt
2ft
Tuesday Night
Low: 30 °F
SSE 21kt
1ft
Wednesday
High: 34 °F
NNW 25kt
1-3ft
Wednesday Night
Low: 21 °F
NW 24kt
1-3ft
Thursday
High: 25 °F
W 15kt
1ft
Thursday Night
Low: 20 °F
WNW 16kt
1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:13 pm EST Dec 7, 2025
Forecast Valid: 7pm EST Dec 7, 2025-6pm EST Dec 14, 2025

View Nearby Observations

Detailed Forecast

Tonight

N wind 11 to 16 kt, with gusts as high as 22 kt. Partly cloudy. Waves 1 to 2 ft.

Monday

N wind 5 to 9 kt becoming SSW in the afternoon. Mostly sunny. Waves 1 ft or less.

Monday Night

S wind 12 to 17 kt increasing to 20 to 25 kt after midnight. A chance of snow after 1am. Waves 1 ft or less.

Tuesday

S wind 22 to 29 kt becoming WSW in the afternoon. Snow likely before 1pm. Waves around 2 ft.

Tuesday Night

WSW wind 18 to 21 kt becoming SSE after midnight. Snow before 4am, then rain and snow. Waves around 1 ft.

Wednesday

SSW wind 21 to 25 kt becoming NNW in the afternoon. Winds could gust as high as 31 kt. Rain and snow before 1pm, then a chance of snow. Waves 1 to 3 ft.

Wednesday Night

NW wind 17 to 24 kt. Mostly cloudy. Waves 1 to 3 ft.

Thursday

W wind 11 to 15 kt. Partly sunny. Waves around 1 ft.

Thursday Night

WNW wind 13 to 16 kt. A chance of snow. Waves around 1 ft.

Wave heights are for ice free areas.

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.