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Detroit/Pontiac, MI Local Forecast Office

6NM N Port Huron MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 74 °F
Light Wind
< 1ft
Tonight
Low: 70 °F
Light Wind
< 1ft
Friday
High: 77 °F
S 6kt
< 1ft
Friday Night
Low: 71 °F
SSW 8kt
< 1ft
Saturday
High: 78 °F
SW 10kt
< 1ft
Saturday Night
Low: 68 °F
NNW 7kt
< 1ft
Sunday
High: 78 °F
SSW 10kt
< 1ft
Sunday Night
Low: 70 °F
SW 8kt
< 1ft
Monday
High: 77 °F
SW 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: 10:14 am EDT Aug 6, 2026
Forecast Valid: 12pm EDT Aug 6, 2026-6pm EDT Aug 12, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

Variable winds 5 kt or less. Scattered showers and thunderstorms, mainly after 4pm. Waves 1 ft or less.

Tonight

Variable winds 5 kt or less. Scattered showers before 3am, then isolated showers and thunderstorms between 3am and 5am, then isolated thunderstorms after 5am. Waves 1 ft or less.

Friday

S wind around 6 kt. A chance of showers between 1pm and 5pm, then a chance of showers and thunderstorms after 5pm. Waves 1 ft or less.

Friday Night

SSW wind 6 to 8 kt. A chance of thunderstorms before 8pm. Waves 1 ft or less.

Saturday

SW wind around 10 kt. A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers after 5pm. Waves 1 ft or less.

Saturday Night

NNW wind around 7 kt. Mostly clear. Waves 1 ft or less.

Sunday

SSW wind 6 to 10 kt, with gusts as high as 18 kt. Mostly sunny. Waves 1 ft or less.

Sunday Night

SW wind 6 to 8 kt. A chance of showers. Waves 1 ft or less.

Monday

SW wind 6 to 10 kt, with gusts as high as 18 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. 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.