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Detroit/Pontiac, MI Local Forecast Office

5NM S Monroe MI

Marine Point Forecast

[NOTICE]

Tonight
Low: 56 °F
SW 18kt
1-2ft

Small Craft Advisory
Friday
High: 60 °F
W 19kt
1ft

Small Craft Advisory
Friday Night
Low: 40 °F
N 20kt
1ft

Small Craft Advisory
Saturday
High: 52 °F
NNW 13kt
< 1ft

Small Craft Advisory
Saturday Night
Low: 40 °F
SW 9kt
< 1ft
Sunday
High: 60 °F
SW 11kt
< 1ft
Sunday Night
Low: 43 °F
SSW 9kt
< 1ft
Monday
High: 64 °F
SW 7kt
< 1ft
Monday Night
Low: 47 °F
Light Wind
< 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 pm EDT Oct 15, 2026
Forecast Valid: 7pm EDT Oct 15, 2026-6pm EDT Oct 22, 2026

View Nearby Observations

Detailed Forecast

Tonight

ESE wind 11 to 18 kt becoming SW after midnight. Winds could gust as high as 28 kt. Rain and thunderstorms before 5am, then a chance of rain. Waves 1 to 2 ft.

Friday

W wind 17 to 19 kt, with gusts as high as 28 kt. Rain likely, mainly after 4pm. Waves around 1 ft.

Friday Night

N wind 18 to 20 kt, with gusts as high as 30 kt. A chance of rain before 7pm. Waves around 1 ft.

Saturday

NNW wind 6 to 13 kt, with gusts as high as 19 kt. Sunny. Waves 1 ft or less.

Saturday Night

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

Sunday

SW wind 9 to 11 kt. Sunny. Waves 1 ft or less.

Sunday Night

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

Monday

SW wind around 7 kt. Sunny. Waves 1 ft or less.

Monday Night

Variable winds 5 kt or less. Partly 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.