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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: 9:49 pm EDT Sep 9, 2026
Forecast Valid: 1am EDT Sep 10, 2026-6pm EDT Sep 16, 2026

Thursday

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

Thursday Night

Variable winds 5 kt or less. Mostly cloudy during the early evening, then gradual clearing. Waves 1 ft or less.

Friday

Variable winds less than 5 kt becoming ESE 5 to 8 kt in the afternoon. Sunny. Waves 1 ft or less.

Friday Night

ESE wind around 7 kt. Partly cloudy. Waves 1 ft or less.

Saturday

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

Saturday Night

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

Sunday

WNW wind around 6 kt becoming SSW in the afternoon. Mostly sunny. Waves 1 ft or less.

Sunday Night

ENE wind 5 to 7 kt. Mostly cloudy. Waves 1 ft or less.

Monday

E wind 8 to 11 kt becoming SE in the morning. 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 73 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.