Hazardous Weather Conditions

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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:N wind around 6 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.

      Low: 28 °F

      N 6kt⇓
      < 1ft

    • Tuesday

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

      High: 46 °F

      ⇑SW 8kt
      < 1ft

    • Tuesday Night

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

      Low: 36 °F

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:S wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

      High: 56 °F

      S 10kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SW wind around 9 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 47 °F

      SW 9kt
      < 1ft

    • Thursday

      Thursday:SSW wind 8 to 12 kt. A chance of rain and thunderstorms after 2pm.   Waves 1 ft or less.

      High: 66 °F

      SSW 12kt
      < 1ft

    • Thursday Night

      Thursday Night:W wind 11 to 13 kt becoming N in the evening. Winds could gust as high as 19 kt. A chance of rain and thunderstorms before 8pm, then rain likely between 8pm and 2am.   Waves 1 ft or less.

      Low: 31 °F

      N 13kt
      < 1ft

    • Friday

      Friday:N wind 11 to 13 kt. Partly sunny. Waves 1 ft or less.

      High: 39 °F

      N 13kt
      < 1ft

    • Friday Night

      Friday Night:N wind 5 to 7 kt. Mostly clear. Waves 1 ft or less.

      Low: 26 °F

      N 7kt
      < 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 pm EDT Mar 23, 2026
Forecast Valid: 10pm EDT Mar 23, 2026-6pm EDT Mar 30, 2026

View Nearby Observations

Detailed Forecast

Tonight
N wind around 6 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming SW 5 to 8 kt in the morning. Mostly sunny. Waves 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. Mostly cloudy. Waves 1 ft or less.
Wednesday
S wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.
Wednesday Night
SW wind around 9 kt. Mostly cloudy. Waves 1 ft or less.
Thursday
SSW wind 8 to 12 kt. A chance of rain and thunderstorms after 2pm. Waves 1 ft or less.
Thursday Night
W wind 11 to 13 kt becoming N in the evening. Winds could gust as high as 19 kt. A chance of rain and thunderstorms before 8pm, then rain likely between 8pm and 2am. Waves 1 ft or less.
Friday
N wind 11 to 13 kt. Partly sunny. Waves 1 ft or less.
Friday Night
N wind 5 to 7 kt. Mostly clear. Waves 1 ft or less.

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

The water temperature at Belle Isle is 37 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 pm EDT Mar 23, 2026
Forecast Valid: 10pm EDT Mar 23, 2026-6pm EDT Mar 30, 2026
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