Hazardous Weather Conditions

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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:WSW wind around 14 kt, with gusts as high as 20 kt. A slight chance of rain before 4pm, then a chance of rain and thunderstorms between 4pm and 5pm, then rain likely and possibly a thunderstorm after 5pm.   Waves 1 ft or less.

      High: 71 °F

      WSW 14kt
      < 1ft

    • Tonight

      Tonight:NW wind 7 to 10 kt. A chance of rain and thunderstorms, mainly before 7pm.   Waves 1 ft or less.

      Low: 44 °F

      NW 10kt
      < 1ft

    • Friday

      Friday:NNW wind around 6 kt becoming variable and less than 5 kt in the afternoon. Sunny. Waves 1 ft or less.

      High: 59 °F

      NNW 6kt⇓
      < 1ft

    • Friday Night

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

      Low: 48 °F

      Light Wind
      < 1ft

    • Saturday

      Saturday:ESE wind 5 to 8 kt. Mostly cloudy. Waves 1 ft or less.

      High: 58 °F

      ESE 8kt
      < 1ft

    • Saturday Night

      Saturday Night:E wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Cloudy. Waves 1 ft or less.

      Low: 50 °F

      E 7kt⇓
      < 1ft

    • Sunday

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

      High: 62 °F

      Light Wind
      < 1ft

    • Sunday Night

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

      Low: 51 °F

      Light Wind
      < 1ft

    • Monday

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

      High: 64 °F

      ⇑SE 6kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:49 am EDT Oct 29, 2026
Forecast Valid: 2pm EDT Oct 29, 2026-6pm EST Nov 4, 2026

View Nearby Observations

Detailed Forecast

This Afternoon
WSW wind around 14 kt, with gusts as high as 20 kt. A slight chance of rain before 4pm, then a chance of rain and thunderstorms between 4pm and 5pm, then rain likely and possibly a thunderstorm after 5pm. Waves 1 ft or less.
Tonight
NW wind 7 to 10 kt. A chance of rain and thunderstorms, mainly before 7pm. Waves 1 ft or less.
Friday
NNW wind around 6 kt becoming variable and less than 5 kt in the afternoon. Sunny. Waves 1 ft or less.
Friday Night
Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.
Saturday
ESE wind 5 to 8 kt. Mostly cloudy. Waves 1 ft or less.
Saturday Night
E wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Cloudy. Waves 1 ft or less.
Sunday
Variable winds 5 kt or less. Mostly cloudy. Waves 1 ft or less.
Sunday Night
Variable winds 5 kt or less. Mostly cloudy. Waves 1 ft or less.
Monday
Variable winds less than 5 kt becoming SE around 6 kt in the afternoon. Partly sunny. Waves 1 ft or less.

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

The water temperature at Belle Isle is 57 degrees.


*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 41.85°N 83.39°W
Last Update: 9:49 am EDT Oct 29, 2026
Forecast Valid: 2pm EDT Oct 29, 2026-6pm EST Nov 4, 2026
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