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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 61 °F
SSW 11kt
< 1ft
Tonight
Low: 51 °F
S 10kt
< 1ft
Wednesday
High: 62 °F
S 17kt
< 1ft
Wednesday Night
Low: 39 °F
S 16kt
< 1ft
Thursday
High: 46 °F
W 18kt
< 1ft
Thursday Night
Low: 30 °F
NW 14kt
< 1ft
Friday
High: 51 °F
SW 13kt
< 1ft
Friday Night
Low: 41 °F
SSW 12kt
< 1ft
Saturday
High: 48 °F
W 12kt
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:13 am EDT Mar 18, 2025
Forecast Valid: 1pm EDT Mar 18, 2025-6pm EDT Mar 24, 2025

View Nearby Observations

Detailed Forecast

This Afternoon

SSW wind around 11 kt. Mostly sunny. Waves 1 ft or less.

Tonight

S wind around 10 kt. Increasing clouds. Waves 1 ft or less.

Wednesday

S wind 11 to 17 kt, with gusts as high as 23 kt. Mostly cloudy. Waves 1 ft or less.

Wednesday Night

S wind around 16 kt, with gusts as high as 25 kt. Rain likely, mainly between 8pm and 2am. Waves 1 ft or less.

Thursday

SW wind 16 to 18 kt becoming WNW in the afternoon. Winds could gust as high as 24 kt. A chance of rain before 5pm, then a chance of rain and snow. Waves 1 ft or less.

Thursday Night

NW wind 8 to 14 kt, with gusts as high as 20 kt. A chance of snow before 8pm. Waves 1 ft or less.

Friday

SW wind 6 to 13 kt. Mostly sunny. Waves 1 ft or less.

Friday Night

SSW wind around 12 kt. Mostly cloudy. Waves 1 ft or less.

Saturday

SW wind 9 to 12 kt becoming WNW in the afternoon. A chance of rain. Waves 1 ft or less.

See Lake Erie Open Lake Forecast for days 3 through 5.

The water temperature at Belle Isle is 41 degrees.

*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.