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4NM S Monroe MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 6:13 pm EST Dec 6, 2025
Forecast Valid: 7pm EST Dec 6, 2025-6pm EST Dec 13, 2025

Tonight

W wind around 6 kt becoming variable and less than 5 kt in the evening. A slight chance of snow after 4am. Waves 1 ft or less.

Sunday

Variable winds less than 5 kt becoming NW 5 to 10 kt in the afternoon. Snow, mainly before 1pm. Waves 1 ft or less.

Sunday Night

N wind around 9 kt. Partly cloudy. Waves 1 ft or less.

Monday

N wind 5 to 7 kt becoming E in the afternoon. Mostly sunny. Waves 1 ft or less.

Monday Night

Variable winds less than 5 kt becoming SSW 6 to 11 kt in the evening. Winds could gust as high as 18 kt. Mostly cloudy. Waves 1 ft or less.

Tuesday

SW wind 13 to 15 kt, with gusts as high as 22 kt. A chance of snow before 1pm. Waves 1 ft or less.

Tuesday Night

SSW wind 12 to 16 kt, with gusts as high as 24 kt. Rain, mainly after 1am. Waves 1 ft or less.

Wednesday

SW wind 14 to 16 kt, with gusts as high as 24 kt. Rain likely before 1pm, then a chance of rain and snow. Waves 1 ft or less.

Wednesday Night

W wind 9 to 13 kt, with gusts as high as 21 kt. A chance of snow before 1am. Waves 1 ft or less.

Wave heights are for ice free areas.

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

The water temperature at Belle Isle is 33 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.