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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SE wind around 8 kt. Sunny. Waves 1 ft or less.

      High: 76 °F

      SE 8kt
      < 1ft

    • Tonight

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

      Low: 58 °F

      SE 7kt⇓
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming S 5 to 7 kt in the morning. Sunny. Waves 1 ft or less.

      High: 82 °F

      ⇑S 7kt
      < 1ft

    • Thursday Night

      Thursday Night:SW wind 5 to 7 kt. Partly cloudy. Waves 1 ft or less.

      Low: 65 °F

      SW 7kt
      < 1ft

    • Friday

      Friday:SW wind 9 to 16 kt. Mostly sunny. Waves 1 ft or less.

      High: 85 °F

      SW 16kt
      < 1ft

    • Friday Night

      Friday Night:SW wind around 13 kt, with gusts as high as 20 kt. Showers likely, mainly after 2am.   Waves 1 ft or less.

      Low: 65 °F

      SW 13kt
      < 1ft

    • Saturday

      Saturday:W wind around 13 kt. Showers likely, then showers and possibly a thunderstorm after 2pm.   Waves 1 ft or less.

      High: 80 °F

      W 13kt
      < 1ft

    • Saturday Night

      Saturday Night:WNW wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am.   Waves 1 ft or less.

      Low: 62 °F

      WNW 7kt⇓
      < 1ft

    • Sunday

      Sunday:NNE wind 5 to 8 kt becoming E in the afternoon. Mostly sunny. Waves 1 ft or less.

      High: 76 °F

      E 8kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:35 pm EDT Jun 3, 2026
Forecast Valid: 4pm EDT Jun 3, 2026-6pm EDT Jun 9, 2026

View Nearby Observations

Detailed Forecast

This Afternoon
SE wind around 8 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.
Thursday
Variable winds less than 5 kt becoming S 5 to 7 kt in the morning. Sunny. Waves 1 ft or less.
Thursday Night
SW wind 5 to 7 kt. Partly cloudy. Waves 1 ft or less.
Friday
SW wind 9 to 16 kt. Mostly sunny. Waves 1 ft or less.
Friday Night
SW wind around 13 kt, with gusts as high as 20 kt. Showers likely, mainly after 2am. Waves 1 ft or less.
Saturday
W wind around 13 kt. Showers likely, then showers and possibly a thunderstorm after 2pm. Waves 1 ft or less.
Saturday Night
WNW wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Waves 1 ft or less.
Sunday
NNE wind 5 to 8 kt becoming E in the afternoon. 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 65 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: 3:35 pm EDT Jun 3, 2026
Forecast Valid: 4pm EDT Jun 3, 2026-6pm EDT Jun 9, 2026
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