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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: 2:35 am EDT Sep 7, 2026
Forecast Valid: 3am EDT Sep 7, 2026-6pm EDT Sep 13, 2026

Labor Day

NE wind 6 to 11 kt becoming E in the afternoon. Mostly sunny. Waves 1 ft or less.

Monday Night

E wind 6 to 9 kt. Mostly clear. Waves 1 ft or less.

Tuesday

Variable winds less than 5 kt becoming SE 5 to 8 kt in the morning. Mostly sunny. Waves 1 ft or less.

Tuesday Night

SE wind 7 to 9 kt becoming SSW after midnight. Mostly cloudy. Waves 1 ft or less.

Wednesday

SW wind 11 to 15 kt. A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Waves 1 ft or less.

Wednesday Night

WSW wind 8 to 11 kt. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Waves 1 ft or less.

Thursday

WNW wind 7 to 10 kt. Partly sunny. Waves 1 ft or less.

Thursday Night

NW wind 5 to 7 kt. Mostly clear. Waves 1 ft or less.

Friday

Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. 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.