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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: 10:13 pm EDT Oct 15, 2025
Forecast Valid: 2am EDT Oct 16, 2025-6pm EDT Oct 22, 2025

Thursday

NNE wind around 6 kt becoming E in the afternoon. Sunny. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

Friday

Variable winds less than 5 kt becoming S 5 to 7 kt in the morning. Partly sunny. Waves 1 ft or less.

Friday Night

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

Saturday

S wind 9 to 11 kt. Mostly sunny. Waves 1 ft or less.

Saturday Night

S wind around 12 kt, with gusts as high as 18 kt. Showers, mainly after 8pm. Waves 1 ft or less.

Sunday

SSW wind 12 to 14 kt becoming WSW in the afternoon. Winds could gust as high as 21 kt. Showers. Waves 1 ft or less.

Sunday Night

W wind 11 to 13 kt, with gusts as high as 21 kt. Showers likely. Waves 1 ft or less.

Monday

W wind around 12 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.