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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: 8:49 pm EDT Apr 16, 2026
Forecast Valid: 9pm EDT Apr 16, 2026-6pm EDT Apr 23, 2026

Tonight

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

Friday

Variable winds less than 5 kt becoming ESE around 6 kt in the afternoon. Partly sunny. Waves 1 ft or less.

Friday Night

ESE wind around 10 kt becoming SSE after midnight. Showers likely and possibly a thunderstorm after 2am. Waves 1 ft or less.

Saturday

SSW wind 13 to 17 kt becoming W in the afternoon. Winds could gust as high as 23 kt. Showers and possibly a thunderstorm. Waves 1 ft or less.

Saturday Night

WNW wind 12 to 14 kt, with gusts as high as 20 kt. A chance of showers before 2am. Waves 1 ft or less.

Sunday

W wind 12 to 17 kt, with gusts as high as 23 kt. Mostly sunny. Waves 1 ft or less.

Sunday Night

NW wind 8 to 13 kt, with gusts as high as 19 kt. Partly cloudy. Waves 1 ft or less.

Monday

NW wind around 7 kt. Sunny. Waves 1 ft or less.

Monday Night

S wind 6 to 9 kt. 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 50 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.