Hazardous Weather Conditions

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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:NE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 11pm.   Waves 1 ft or less.

      Low: 67 °F

      NE 7kt⇓
      < 1ft

    • Thursday

      Thursday:N wind around 6 kt. A chance of showers.   Waves 1 ft or less.

      High: 76 °F

      N 6kt
      < 1ft

    • Thursday Night

      Thursday Night:Variable winds less than 5 kt becoming NE around 6 kt in the evening. Cloudy, then becoming partly cloudy toward daybreak. Waves 1 ft or less.

      Low: 61 °F

      ⇑NE 6kt
      < 1ft

    • Friday

      Friday:NNE wind 8 to 10 kt becoming ENE in the afternoon. Mostly sunny. Waves 1 ft or less.

      High: 73 °F

      NE 10kt
      < 1ft

    • Friday Night

      Friday Night:ENE wind around 9 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 62 °F

      ENE 9kt
      < 1ft

    • Saturday

      Saturday:ESE wind 8 to 10 kt. A chance of showers, then showers and possibly a thunderstorm after 2pm.   Waves 1 ft or less.

      High: 73 °F

      ESE 10kt
      < 1ft

    • Saturday Night

      Saturday Night:ESE wind around 10 kt becoming SSW after midnight. Showers and possibly a thunderstorm before 2am, then showers likely.   Waves 1 ft or less.

      Low: 64 °F

      ESE 10kt
      < 1ft

    • Sunday

      Sunday:NW wind around 12 kt becoming NE in the afternoon. Winds could gust as high as 18 kt. Showers likely.   Waves 1 ft or less.

      High: 70 °F

      N 12kt
      < 1ft

    • Sunday Night

      Sunday Night:ENE wind 12 to 14 kt, with gusts as high as 23 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 60 °F

      ENE 14kt
      < 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 Sep 16, 2026
Forecast Valid: 8pm EDT Sep 16, 2026-6pm EDT Sep 23, 2026

View Nearby Observations

Detailed Forecast

Tonight
NE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 11pm. Waves 1 ft or less.
Thursday
N wind around 6 kt. A chance of showers. Waves 1 ft or less.
Thursday Night
Variable winds less than 5 kt becoming NE around 6 kt in the evening. Cloudy, then becoming partly cloudy toward daybreak. Waves 1 ft or less.
Friday
NNE wind 8 to 10 kt becoming ENE in the afternoon. Mostly sunny. Waves 1 ft or less.
Friday Night
ENE wind around 9 kt. Mostly cloudy. Waves 1 ft or less.
Saturday
ESE wind 8 to 10 kt. A chance of showers, then showers and possibly a thunderstorm after 2pm. Waves 1 ft or less.
Saturday Night
ESE wind around 10 kt becoming SSW after midnight. Showers and possibly a thunderstorm before 2am, then showers likely. Waves 1 ft or less.
Sunday
NW wind around 12 kt becoming NE in the afternoon. Winds could gust as high as 18 kt. Showers likely. Waves 1 ft or less.
Sunday Night
ENE wind 12 to 14 kt, with gusts as high as 23 kt. Mostly cloudy. Waves 1 ft or less.

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

The water temperature at Belle Isle is 70 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 Sep 16, 2026
Forecast Valid: 8pm EDT Sep 16, 2026-6pm EDT Sep 23, 2026
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