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Detroit/Pontiac, MI Local Forecast Office

6NM NNW Bay Port MI

Marine Point Forecast

[NOTICE]

Today
High: 31 °F
WSW 19kt
1-2ft

Small Craft Advisory
Tonight
Low: 24 °F
NW 12kt
< 1ft
Sunday
High: 27 °F
NW 18kt
< 1ft
Sunday Night
Low: 17 °F
NNW 21kt
1-2ft
Monday
High: 23 °F
N 11kt
< 1ft
Monday Night
Low: 21 °F
⇑SSW 29kt
1-2ft
Tuesday
High: 32 °F
SSW 31kt
2ft
Tuesday Night
Low: 31 °F
S 22kt
1-2ft
Wednesday
High: 34 °F
NW 28kt
2ft

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 am EST Dec 6, 2025
Forecast Valid: 6am EST Dec 6, 2025-6pm EST Dec 12, 2025

View Nearby Observations

Detailed Forecast

Today

WSW wind 14 to 19 kt becoming WNW in the afternoon. A slight chance of snow before 7am. Waves 1 to 2 ft.

Tonight

NW wind 7 to 12 kt. A chance of snow after 4am. Waves 1 ft or less.

Sunday

NW wind 8 to 18 kt. Snow, mainly between 7am and 1pm. Waves 1 ft or less.

Sunday Night

NNW wind 15 to 21 kt. Partly cloudy. Waves 1 to 2 ft.

Monday

N wind 8 to 11 kt becoming SSW in the afternoon. Partly sunny. Waves 1 ft or less.

Monday Night

SSW wind 15 to 20 kt increasing to 24 to 29 kt after midnight. A chance of snow after 1am. Waves 1 to 2 ft.

Tuesday

SSW wind 24 to 31 kt. Snow likely, mainly before 1pm. Waves around 2 ft.

Tuesday Night

SW wind 20 to 22 kt becoming S after midnight. A chance of snow before 1am, then rain and snow. Waves 1 to 2 ft.

Wednesday

SSW wind 24 to 28 kt becoming NNW in the afternoon. Winds could gust as high as 35 kt. Rain and snow before 1pm, then a chance of snow. Waves around 2 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.