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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: 9:13 am EDT Sep 29, 2026
Forecast Valid: 12pm EDT Sep 29, 2026-6pm EDT Oct 5, 2026

This Afternoon

Variable winds less than 5 kt becoming ESE around 6 kt. Sunny. Waves 1 ft or less.

Tonight

Variable winds 5 kt or less. Increasing clouds. Waves 1 ft or less.

Wednesday

SSW wind 6 to 8 kt. Mostly cloudy. Waves 1 ft or less.

Wednesday Night

S wind 6 to 9 kt. Mostly cloudy. Waves 1 ft or less.

Thursday

WSW wind 9 to 11 kt. Mostly cloudy. Waves 1 ft or less.

Thursday Night

WSW wind 5 to 8 kt becoming N after midnight. Showers, mainly after 2am. Waves 1 ft or less.

Friday

N wind around 11 kt, with gusts as high as 18 kt. Showers, mainly before 2pm. Waves 1 ft or less.

Friday Night

NE wind 7 to 9 kt. A chance of showers. Waves 1 ft or less.

Saturday

ENE wind around 10 kt. Mostly sunny. Waves 1 ft or less.

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

The water temperature at Belle Isle is 62 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.