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Detroit/Pontiac, MI Local Forecast Office

6NM NNW Bay Port MI

Marine Point Forecast

[NOTICE]

Today
High: 27 °F
W 17kt
< 1ft

Small Craft Advisory
Tonight
Low: 18 °F
NNW 18kt
1-2ft

Small Craft Advisory
Monday
High: 24 °F
N 11kt
< 1ft

Small Craft Advisory
Monday Night
Low: 19 °F
⇑S 29kt
< 1ft
Tuesday
High: 33 °F
S 32kt
1-2ft
Tuesday Night
Low: 31 °F
S 23kt
1ft
Wednesday
High: 35 °F
NNW 25kt
1ft
Wednesday Night
Low: 22 °F
WNW 25kt
1ft
Thursday
High: 27 °F
W 14kt
< 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 am EST Dec 7, 2025
Forecast Valid: 5am EST Dec 7, 2025-6pm EST Dec 13, 2025

View Nearby Observations

Detailed Forecast

Today

W wind 7 to 17 kt. Snow, mainly before 1pm. Waves 1 ft or less.

Tonight

NNW wind 13 to 18 kt. Partly cloudy. Waves 1 to 2 ft.

Monday

N wind 6 to 11 kt becoming SSW in the afternoon. Mostly sunny. Waves 1 ft or less.

Monday Night

S wind 14 to 19 kt increasing to 24 to 29 kt after midnight. A chance of snow after 1am. Waves 1 ft or less.

Tuesday

S wind 24 to 32 kt becoming WSW in the afternoon. Snow likely before 1pm. Waves 1 to 2 ft.

Tuesday Night

WSW wind 19 to 23 kt becoming S after midnight. A chance of snow before 1am, then rain and snow between 1am and 4am, then rain after 4am. Waves around 1 ft.

Wednesday

SSW wind 23 to 25 kt becoming NNW in the afternoon. Winds could gust as high as 32 kt. Rain likely before 7am, then rain and snow likely. Waves around 1 ft.

Wednesday Night

WNW wind 17 to 25 kt. Mostly cloudy. Waves around 1 ft.

Thursday

W wind 11 to 14 kt. Mostly cloudy. Waves 1 ft 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.