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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming SE around 6 kt in the afternoon. Sunny. Waves 1 ft or less.

      High: 76 °F

      ⇑SE 6kt
      < 1ft

    • Wednesday Night

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

      Low: 58 °F

      SSE 7kt⇓
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming S 5 to 9 kt in the morning. Sunny. Waves 1 ft or less.

      High: 82 °F

      ⇑S 9kt
      < 1ft

    • Thursday Night

      Thursday Night:SW wind 6 to 8 kt. Partly cloudy. Waves 1 ft or less.

      Low: 63 °F

      SW 8kt
      < 1ft

    • Friday

      Friday:SW wind 9 to 15 kt. Partly sunny. Waves 1 ft or less.

      High: 84 °F

      SW 15kt
      < 1ft

    • Friday Night

      Friday Night:SW wind 10 to 12 kt. A chance of showers after 2am.   Waves 1 ft or less.

      Low: 64 °F

      SW 12kt
      < 1ft

    • Saturday

      Saturday:SW wind 13 to 15 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm.   Waves 1 ft or less.

      High: 81 °F

      SW 15kt
      < 1ft

    • Saturday Night

      Saturday Night:WSW wind 6 to 9 kt. Showers likely and possibly a thunderstorm before 2am, then a chance of showers.   Waves 1 ft or less.

      Low: 64 °F

      WSW 9kt
      < 1ft

    • Sunday

      Sunday:WNW wind 7 to 9 kt becoming N in the afternoon. A chance of showers before 8am, then a chance of showers and thunderstorms after 2pm.   Waves 1 ft or less.

      High: 71 °F

      N 9kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:24 pm EDT Jun 2, 2026
Forecast Valid: 2am EDT Jun 3, 2026-6pm EDT Jun 9, 2026

View Nearby Observations

Detailed Forecast

Wednesday
Variable winds less than 5 kt becoming SE around 6 kt in the afternoon. Sunny. Waves 1 ft or less.
Wednesday Night
SSE 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 9 kt in the morning. Sunny. Waves 1 ft or less.
Thursday Night
SW wind 6 to 8 kt. Partly cloudy. Waves 1 ft or less.
Friday
SW wind 9 to 15 kt. Partly sunny. Waves 1 ft or less.
Friday Night
SW wind 10 to 12 kt. A chance of showers after 2am. Waves 1 ft or less.
Saturday
SW wind 13 to 15 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Waves 1 ft or less.
Saturday Night
WSW wind 6 to 9 kt. Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Waves 1 ft or less.
Sunday
WNW wind 7 to 9 kt becoming N in the afternoon. A chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. 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: 4:24 pm EDT Jun 2, 2026
Forecast Valid: 2am EDT Jun 3, 2026-6pm EDT Jun 9, 2026
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