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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 39 °F
Light Wind
< 1ft
Tonight
Low: 35 °F
ESE 15kt
< 1ft
Sunday
High: 63 °F
S 18kt
< 1ft
Sunday Night
Low: 34 °F
S 23kt
< 1ft
Monday
High: 44 °F
WSW 24kt
< 1ft
Monday Night
Low: 20 °F
W 24kt
< 1ft
Tuesday
High: 28 °F
WNW 16kt
< 1ft
Tuesday Night
Low: 22 °F
W 12kt
< 1ft
Wednesday
High: 37 °F
S 14kt
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:24 pm EDT Mar 14, 2026
Forecast Valid: 3pm EDT Mar 14, 2026-6pm EDT Mar 20, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

Variable winds 5 kt or less. Partly sunny. Waves 1 ft or less.

Tonight

ESE wind 8 to 15 kt, with gusts as high as 23 kt. A chance of snow, mainly between 10pm and 2am. Waves 1 ft or less.

Sunday

ESE wind 14 to 18 kt becoming S in the afternoon. Winds could gust as high as 26 kt. Mostly cloudy. Waves 1 ft or less.

Sunday Night

S wind 20 to 23 kt, with gusts as high as 34 kt. A chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then showers and possibly a thunderstorm after 2am. Waves 1 ft or less.

Monday

WSW wind 20 to 24 kt, with gusts as high as 32 kt. Rain before 8am. Waves 1 ft or less.

Monday Night

W wind 20 to 24 kt, with gusts as high as 32 kt. Mostly cloudy. Waves 1 ft or less.

Tuesday

WNW wind around 16 kt, with gusts as high as 22 kt. Partly sunny. Waves 1 ft or less.

Tuesday Night

W wind 6 to 12 kt becoming SW after midnight. Mostly cloudy. Waves 1 ft or less.

Wednesday

S wind 10 to 14 kt. A chance of snow. 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.