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Detroit/Pontiac, MI Local Forecast Office

5NM ENE Port Austin MI

Marine Point Forecast

[NOTICE]

Columbus Day
High: 76 °F
SSW 9kt
< 1ft
Tonight
Low: 62 °F
WSW 7kt
< 1ft
Tuesday
High: 72 °F
WSW 16kt
1ft
Tuesday Night
Low: 54 °F
NW 15kt
1-2ft
Wednesday
High: 58 °F
NNW 12kt
1ft
Wednesday Night
Low: 50 °F
N 18kt
2-3ft
Thursday
High: 57 °F
ESE 10kt
1-2ft
Thursday Night
Low: 50 °F
SSW 8kt
< 1ft
Friday
High: 57 °F
NW 33kt
6ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:49 pm EDT Oct 12, 2026
Forecast Valid: 4pm EDT Oct 12, 2026-6pm EDT Oct 18, 2026

View Nearby Observations

Detailed Forecast

Columbus Day

SSW wind around 9 kt. Mostly sunny. Waves 1 ft or less.

Tonight

WSW wind 5 to 7 kt. A chance of rain and thunderstorms before 2am, then rain likely and possibly a thunderstorm between 2am and 4am, then a chance of rain and thunderstorms after 4am. Waves 1 ft or less.

Tuesday

SSW wind 9 to 16 kt becoming W in the afternoon. Winds could gust as high as 24 kt. A chance of rain before 8am. Waves around 1 ft.

Tuesday Night

NW wind 8 to 15 kt. Increasing clouds. Waves 1 to 2 ft.

Wednesday

NNW wind around 12 kt. Cloudy through mid morning, then becoming mostly sunny. Waves around 1 ft.

Wednesday Night

N wind 14 to 18 kt. Mostly cloudy. Waves 2 to 3 ft.

Thursday

ESE wind 7 to 10 kt. Mostly cloudy. Waves 1 to 2 ft.

Thursday Night

ESE wind 5 to 8 kt becoming SSW after midnight. Rain. Waves 1 ft or less.

Friday

NW wind 24 to 33 kt, with gusts as high as 40 kt. Rain likely. Waves 3 ft building to 6 ft.

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.