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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]
    • Today

      Today:NE wind around 6 kt becoming ESE in the afternoon. Partly sunny, then gradually becoming sunny. Waves 1 ft or less.

      High: 49 °F

      NE 6kt
      < 1ft

    • Tonight

      Tonight:ESE wind 7 to 9 kt. A slight chance of showers after 2am.   Waves 1 ft or less.

      Low: 41 °F

      ESE 9kt
      < 1ft

    • Sunday

      Sunday:SE wind 9 to 13 kt becoming SSW in the afternoon. Mostly cloudy. Waves 1 ft or less.

      High: 72 °F

      SSW 13kt
      < 1ft

    • Sunday Night

      Sunday Night:SSW wind 14 to 16 kt, with gusts as high as 22 kt. Showers likely after 2am.   Waves 1 ft or less.

      Low: 60 °F

      SSW 16kt
      < 1ft

    • Monday

      Monday:WSW wind around 17 kt, with gusts as high as 25 kt. Showers likely, mainly before 8am.   Waves 1 ft or less.

      High: 71 °F

      WSW 17kt
      < 1ft

    • Monday Night

      Monday Night:SSW wind around 9 kt. A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am.   Waves 1 ft or less.

      Low: 60 °F

      SSW 9kt
      < 1ft

    • Tuesday

      Tuesday:SSW wind 11 to 15 kt, with gusts as high as 21 kt. A chance of showers and thunderstorms.   Waves 1 ft or less.

      High: 75 °F

      SSW 15kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SW wind around 12 kt, with gusts as high as 18 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am.   Waves 1 ft or less.

      Low: 63 °F

      SW 12kt
      < 1ft

    • Wednesday

      Wednesday:SW wind 12 to 15 kt. Showers likely, mainly after 2pm.   Waves 1 ft or less.

      High: 74 °F

      SW 15kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:25 am EDT Apr 11, 2026
Forecast Valid: 7am EDT Apr 11, 2026-6pm EDT Apr 17, 2026

View Nearby Observations

Detailed Forecast

Today
NE wind around 6 kt becoming ESE in the afternoon. Partly sunny, then gradually becoming sunny. Waves 1 ft or less.
Tonight
ESE wind 7 to 9 kt. A slight chance of showers after 2am. Waves 1 ft or less.
Sunday
SE wind 9 to 13 kt becoming SSW in the afternoon. Mostly cloudy. Waves 1 ft or less.
Sunday Night
SSW wind 14 to 16 kt, with gusts as high as 22 kt. Showers likely after 2am. Waves 1 ft or less.
Monday
WSW wind around 17 kt, with gusts as high as 25 kt. Showers likely, mainly before 8am. Waves 1 ft or less.
Monday Night
SSW wind around 9 kt. A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Waves 1 ft or less.
Tuesday
SSW wind 11 to 15 kt, with gusts as high as 21 kt. A chance of showers and thunderstorms. Waves 1 ft or less.
Tuesday Night
SW wind around 12 kt, with gusts as high as 18 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Waves 1 ft or less.
Wednesday
SW wind 12 to 15 kt. Showers likely, mainly 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 44 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: 4:25 am EDT Apr 11, 2026
Forecast Valid: 7am EDT Apr 11, 2026-6pm EDT Apr 17, 2026
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