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4NM SW Bay Port MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 4:24 am EDT Sep 18, 2026
Forecast Valid: 5am EDT Sep 18, 2026-6pm EDT Sep 24, 2026

Today

NNE wind 10 to 14 kt. Increasing clouds. Waves 1 ft or less.

Tonight

NE wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

Saturday

E wind 5 to 7 kt becoming SE in the afternoon. A chance of showers, mainly between 2pm and 3pm. Waves 1 ft or less.

Saturday Night

E wind around 6 kt. A chance of showers after 2am. Waves 1 ft or less.

Sunday

NE wind 8 to 15 kt, with gusts as high as 24 kt. A chance of showers before 8am. Waves 1 ft or less.

Sunday Night

NE wind 13 to 16 kt, with gusts as high as 24 kt. Mostly cloudy. Waves 1 ft or less.

Monday

ENE wind around 17 kt, with gusts as high as 26 kt. Mostly cloudy. Waves 1 ft or less.

Monday Night

ENE wind 13 to 19 kt, with gusts as high as 30 kt. Mostly cloudy. Waves 1 ft or less.

Tuesday

ENE wind 14 to 18 kt, with gusts as high as 27 kt. Partly sunny. Waves 1 ft or less.

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.