News Headlines

For More Weather Information:

Detroit/Pontiac, MI Local Forecast Office

5NM ENE Port Austin MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 73 °F
NW 9kt
< 1ft
Tonight
Low: 61 °F
N 11kt
1-2ft
Friday
High: 70 °F
N 8kt
1ft
Friday Night
Low: 60 °F
E 6kt⇓
< 1ft
Saturday
High: 77 °F
SW 9kt
< 1ft
Saturday Night
Low: 66 °F
SSW 10kt
< 1ft
Sunday
High: 78 °F
SSW 11kt
< 1ft
Sunday Night
Low: 68 °F
SSE 9kt
< 1ft
Monday
High: 79 °F
SSW 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:24 am EDT Aug 27, 2026
Forecast Valid: 12pm EDT Aug 27, 2026-6pm EDT Sep 2, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

NW wind 7 to 9 kt. A slight chance of showers and thunderstorms after 3pm. Waves 1 ft or less.

Tonight

N wind 9 to 11 kt. A slight chance of showers before 8pm. Waves 1 to 2 ft.

Friday

N wind 5 to 8 kt becoming NE in the afternoon. Sunny. Waves around 1 ft.

Friday Night

E wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Waves 1 ft or less.

Saturday

SW wind 6 to 9 kt. Mostly sunny. Waves 1 ft or less.

Saturday Night

SSW wind 8 to 10 kt. Mostly cloudy. Waves 1 ft or less.

Sunday

SSW wind 9 to 11 kt, with gusts as high as 18 kt. A chance of showers. Waves 1 ft or less.

Sunday Night

SSE wind 7 to 9 kt becoming SSW after midnight. Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Waves 1 ft or less.

Monday

SSW wind 8 to 10 kt. A chance of showers. 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.