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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: 4:35 pm EDT May 22, 2026
Forecast Valid: 6pm EDT May 22, 2026-6pm EDT May 29, 2026

Tonight

E wind 18 to 20 kt, with gusts as high as 27 kt. Showers likely, with thunderstorms also possible after 5am. Waves 1 ft or less.

Saturday

E wind 14 to 18 kt, with gusts as high as 25 kt. Showers and possibly a thunderstorm. Waves 1 ft or less.

Saturday Night

W wind 5 to 9 kt. A chance of showers before 7pm. Waves 1 ft or less.

Sunday

Variable winds 5 kt or less. Showers likely after 2pm. Waves 1 ft or less.

Sunday Night

Variable winds 5 kt or less. Showers likely, mainly before 8pm. Waves 1 ft or less.

Memorial Day

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

Monday Night

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

Tuesday

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

Tuesday Night

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

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

The water temperature at Belle Isle is missing.

*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.