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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 am EDT Aug 4, 2026
Forecast Valid: 2pm EDT Aug 4, 2026-6pm EDT Aug 10, 2026

This Afternoon

SE wind around 6 kt. Sunny. Waves 1 ft or less.

Tonight

SE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.

Wednesday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Wednesday Night

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

Thursday

SW wind 5 to 7 kt. Showers likely and possibly a thunderstorm after 2pm. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Showers likely and possibly a thunderstorm. Waves 1 ft or less.

Friday

Variable winds less than 5 kt becoming SW around 6 kt in the morning. A chance of showers and thunderstorms after 2pm. Waves 1 ft or less.

Friday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms before 8pm. Waves 1 ft or less.

Saturday

SW wind 5 to 9 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 75 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.