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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: 4:24 am EDT Aug 23, 2026
Forecast Valid: 9am EDT Aug 23, 2026-6pm EDT Aug 29, 2026

Today

WNW wind 12 to 15 kt. Sunny. Waves 1 ft or less.

Tonight

WNW wind 8 to 12 kt, with gusts as high as 18 kt. Mostly cloudy, then gradually becoming clear. Waves 1 ft or less.

Monday

W wind 10 to 14 kt. Sunny. Waves 1 ft or less.

Monday Night

WNW wind around 7 kt. Mostly clear. Waves 1 ft or less.

Tuesday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Tuesday Night

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

Wednesday

S wind 5 to 11 kt. Mostly sunny. Waves 1 ft or less.

Wednesday Night

S wind around 8 kt. A chance of showers. Waves 1 ft or less.

Thursday

WSW wind 8 to 10 kt. A chance of showers. Waves 1 ft or less.

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

The water temperature at Belle Isle is 70 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.