Hazardous Weather Conditions

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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:W wind around 11 km/h. Partly cloudy. Waves 1 m or less.

      Low: 22 °C

      W 11km/h
      < 1m

    • Sunday

      Sunday:WNW wind 10 to 15 km/h increasing to 16 to 21 km/h in the afternoon. Winds could gust as high as 29 km/h. Mostly sunny. Waves 1 m or less.

      High: 26 °C

      ⇑WNW 21km/h
      < 1m

    • Sunday Night

      Sunday Night:NW wind 14 to 23 km/h, with gusts as high as 35 km/h. Cloudy during the early evening, then gradual clearing. Waves 1 m or less.

      Low: 13 °C

      NW 23km/h
      < 1m

    • Monday

      Monday:N wind 10 to 13 km/h becoming E in the afternoon. Sunny. Waves 1 m or less.

      High: 19 °C

      N 13km/h
      < 1m

    • Monday Night

      Monday Night:SSE wind 13 to 21 km/h, with gusts as high as 37 km/h. Partly cloudy. Waves 1 m or less.

      Low: 15 °C

      SSE 21km/h
      < 1m

    • Tuesday

      Tuesday:SSW wind around 24 km/h, with gusts as high as 35 km/h. Partly sunny. Waves 1 m or less.

      High: 27 °C

      SSW 24km/h
      < 1m

    • Tuesday Night

      Tuesday Night:SSW wind 11 to 16 km/h becoming W after midnight. Showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am.   Waves 1 m or less.

      Low: 20 °C

      SSW 16km/h
      < 1m

    • Wednesday

      Wednesday:ENE wind around 11 km/h. Showers likely.   Waves 1 m or less.

      High: 25 °C

      ENE 11km/h
      < 1m

    • Wednesday Night

      Wednesday Night:E wind around 10 km/h. Showers likely.   Waves 1 m or less.

      Low: 20 °C

      E 10km/h
      < 1m


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 12, 2026
Forecast Valid: 10pm EDT Sep 12, 2026-6pm EDT Sep 19, 2026

View Nearby Observations

Detailed Forecast

Tonight
W wind around 11 km/h. Partly cloudy. Waves 1 m or less.
Sunday
WNW wind 10 to 15 km/h increasing to 16 to 21 km/h in the afternoon. Winds could gust as high as 29 km/h. Mostly sunny. Waves 1 m or less.
Sunday Night
NW wind 14 to 23 km/h, with gusts as high as 35 km/h. Cloudy during the early evening, then gradual clearing. Waves 1 m or less.
Monday
N wind 10 to 13 km/h becoming E in the afternoon. Sunny. Waves 1 m or less.
Monday Night
SSE wind 13 to 21 km/h, with gusts as high as 37 km/h. Partly cloudy. Waves 1 m or less.
Tuesday
SSW wind around 24 km/h, with gusts as high as 35 km/h. Partly sunny. Waves 1 m or less.
Tuesday Night
SSW wind 11 to 16 km/h becoming W after midnight. Showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Waves 1 m or less.
Wednesday
ENE wind around 11 km/h. Showers likely. Waves 1 m or less.
Wednesday Night
E wind around 10 km/h. Showers likely. Waves 1 m 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: 4:24 pm EDT Sep 12, 2026
Forecast Valid: 10pm EDT Sep 12, 2026-6pm EDT Sep 19, 2026
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