Hazardous Weather Conditions

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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:E wind 9 to 12 kt becoming SSE after midnight. A chance of showers and thunderstorms between 2am and 4am, then showers likely and possibly a thunderstorm after 4am.   Waves 1 ft or less.

      Low: 49 °FRising Temperatures

      SSE 12kt
      < 1ft

    • Saturday

      Saturday:SSW wind 14 to 16 kt becoming W in the afternoon. Winds could gust as high as 22 kt. Showers and thunderstorms before 4pm, then a slight chance of showers after 5pm.   Waves 1 ft or less.

      High: 63 °FFalling Temperatures

      W 16kt
      < 1ft

    • Saturday Night

      Saturday Night:WNW wind 10 to 14 kt, with gusts as high as 22 kt. Mostly cloudy, then gradually becoming mostly clear. Waves 1 ft or less.

      Low: 37 °F

      WNW 14kt
      < 1ft

    • Sunday

      Sunday:W wind 11 to 16 kt, with gusts as high as 22 kt. A chance of showers after 2pm.   Waves 1 ft or less.

      High: 50 °F

      W 16kt
      < 1ft

    • Sunday Night

      Sunday Night:NNW wind 7 to 12 kt, with gusts as high as 18 kt. A chance of showers before 8pm.   Waves 1 ft or less.

      Low: 30 °F

      NNW 12kt
      < 1ft

    • Monday

      Monday:NNW wind around 7 kt becoming W in the afternoon. Sunny. Waves 1 ft or less.

      High: 46 °F

      NNW 7kt
      < 1ft

    • Monday Night

      Monday Night:S wind 5 to 9 kt. Partly cloudy. Waves 1 ft or less.

      Low: 38 °F

      S 9kt
      < 1ft

    • Tuesday

      Tuesday:SW wind 12 to 15 kt. Mostly sunny. Waves 1 ft or less.

      High: 65 °F

      SW 15kt
      < 1ft

    • Tuesday Night

      Tuesday Night:WSW wind around 9 kt becoming N after midnight. Partly cloudy. Waves 1 ft or less.

      Low: 46 °F

      WSW 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: 4:24 pm EDT Apr 17, 2026
Forecast Valid: 6pm EDT Apr 17, 2026-6pm EDT Apr 24, 2026

View Nearby Observations

Detailed Forecast

Tonight
E wind 9 to 12 kt becoming SSE after midnight. A chance of showers and thunderstorms between 2am and 4am, then showers likely and possibly a thunderstorm after 4am. Waves 1 ft or less.
Saturday
SSW wind 14 to 16 kt becoming W in the afternoon. Winds could gust as high as 22 kt. Showers and thunderstorms before 4pm, then a slight chance of showers after 5pm. Waves 1 ft or less.
Saturday Night
WNW wind 10 to 14 kt, with gusts as high as 22 kt. Mostly cloudy, then gradually becoming mostly clear. Waves 1 ft or less.
Sunday
W wind 11 to 16 kt, with gusts as high as 22 kt. A chance of showers after 2pm. Waves 1 ft or less.
Sunday Night
NNW wind 7 to 12 kt, with gusts as high as 18 kt. A chance of showers before 8pm. Waves 1 ft or less.
Monday
NNW wind around 7 kt becoming W in the afternoon. Sunny. Waves 1 ft or less.
Monday Night
S wind 5 to 9 kt. Partly cloudy. Waves 1 ft or less.
Tuesday
SW wind 12 to 15 kt. Mostly sunny. Waves 1 ft or less.
Tuesday Night
WSW wind around 9 kt becoming N after midnight. Partly cloudy. Waves 1 ft or less.

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

The water temperature at Belle Isle is 52 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 Apr 17, 2026
Forecast Valid: 6pm EDT Apr 17, 2026-6pm EDT Apr 24, 2026
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