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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: 5:13 pm EDT Oct 9, 2025
Forecast Valid: 7pm EDT Oct 9, 2025-6pm EDT Oct 16, 2025

Tonight

E wind 5 to 7 kt becoming S after midnight. Partly cloudy. Waves 1 ft or less.

Friday

SSW wind 5 to 9 kt. Sunny. Waves 1 ft or less.

Friday Night

SW wind around 9 kt. A chance of showers after 2am. Waves 1 ft or less.

Saturday

W wind around 7 kt. A chance of showers. Waves 1 ft or less.

Saturday Night

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

Sunday

E wind 5 to 8 kt. Mostly sunny. Waves 1 ft or less.

Sunday Night

E wind 6 to 8 kt. Partly cloudy. Waves 1 ft or less.

Columbus Day

NE wind 5 to 7 kt. Mostly sunny. Waves 1 ft or less.

Monday Night

E wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Waves 1 ft or less.

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

The water temperature at Belle Isle is 65 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.