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Hazardous Weather Conditions

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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]

    • Sunday

      Sunday:WNW wind 5 to 10 kt. Mostly sunny. Waves 1 ft or less.

      High: 79 °F

      WNW 10kt
      < 1ft

    • Sunday Night

      Sunday Night:NNW wind 9 to 12 kt, with gusts as high as 19 kt. Cloudy during the early evening, then gradual clearing. Waves 1 ft or less.

      Low: 67 °F

      NNW 12kt
      < 1ft

    • Monday

      Monday:N wind 5 to 7 kt becoming E in the afternoon. Sunny. Waves 1 ft or less.

      High: 67 °F

      N 7kt
      < 1ft

    • Monday Night

      Monday Night:SE wind 7 to 11 kt, with gusts as high as 19 kt. Partly cloudy. Waves 1 ft or less.

      Low: 55 °F

      SE 11kt
      < 1ft

    • Tuesday

      Tuesday:SSW wind around 13 kt, with gusts as high as 21 kt. Partly sunny. Waves 1 ft or less.

      High: 80 °F

      SSW 13kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSW wind 5 to 7 kt becoming WNW after midnight. Showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Waves 1 ft or less.

      Low: 59 °F

      SSW 7kt
      < 1ft

    • Wednesday

      Wednesday:NE wind 6 to 8 kt. Showers likely, mainly before 2pm. Waves 1 ft or less.

      High: 77 °F

      NE 8kt
      < 1ft

    • Wednesday Night

      Wednesday Night:NE wind 6 to 8 kt. Showers likely. Waves 1 ft or less.

      Low: 68 °F

      NE 8kt
      < 1ft

    • Thursday

      Thursday:ESE wind 6 to 9 kt becoming W in the afternoon. Showers likely. Waves 1 ft or less.

      High: 78 °F

      W 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: 11:35 pm EDT Sep 12, 2026
Forecast Valid: 1am EDT Sep 13, 2026-6pm EDT Sep 19, 2026

View Nearby Observations

Detailed Forecast

Sunday
WNW wind 5 to 10 kt. Mostly sunny. Waves 1 ft or less.
Sunday Night
NNW wind 9 to 12 kt, with gusts as high as 19 kt. Cloudy during the early evening, then gradual clearing. Waves 1 ft or less.
Monday
N wind 5 to 7 kt becoming E in the afternoon. Sunny. Waves 1 ft or less.
Monday Night
SE wind 7 to 11 kt, with gusts as high as 19 kt. Partly cloudy. Waves 1 ft or less.
Tuesday
SSW wind around 13 kt, with gusts as high as 21 kt. Partly sunny. Waves 1 ft or less.
Tuesday Night
SSW wind 5 to 7 kt becoming WNW after midnight. Showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Waves 1 ft or less.
Wednesday
NE wind 6 to 8 kt. Showers likely, mainly before 2pm. Waves 1 ft or less.
Wednesday Night
NE wind 6 to 8 kt. Showers likely. Waves 1 ft or less.
Thursday
ESE wind 6 to 9 kt becoming W in the afternoon. Showers likely. Waves 1 ft or less.

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

The water temperature at Belle Isle is 72 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: 11:35 pm EDT Sep 12, 2026
Forecast Valid: 1am EDT Sep 13, 2026-6pm EDT Sep 19, 2026
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