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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:ESE wind around 7 kt. Sunny. Waves 1 ft or less.

      High: 84 °F

      ESE 7kt
      < 1ft

    • Tonight

      Tonight:SE wind 5 to 7 kt. Increasing clouds. Waves 1 ft or less.

      Low: 74 °F

      SE 7kt
      < 1ft

    • Wednesday

      Wednesday:S wind 6 to 8 kt. Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm.   Waves 1 ft or less.

      High: 83 °F

      S 8kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SW wind 5 to 7 kt. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers after 2am.   Waves 1 ft or less.

      Low: 75 °F

      SW 7kt
      < 1ft

    • Thursday

      Thursday:WSW wind 9 to 11 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm.   Waves 1 ft or less.

      High: 83 °F

      WSW 11kt
      < 1ft

    • Thursday Night

      Thursday Night:NW wind around 9 kt becoming NNE after midnight. Showers likely and possibly a thunderstorm before 8pm.   Waves 1 ft or less.

      Low: 65 °F

      NW 9kt
      < 1ft

    • Friday

      Friday:NNE wind 6 to 8 kt becoming E in the afternoon. Mostly sunny. Waves 1 ft or less.

      High: 74 °F

      NNE 8kt
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

      Low: 66 °F

      Light Wind
      < 1ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming SSE 5 to 7 kt in the morning. A chance of showers, with thunderstorms also possible after 2pm.   Waves 1 ft or less.

      High: 78 °F

      ⇑SSE 7kt
      < 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 Jul 15, 2025
Forecast Valid: 5pm EDT Jul 15, 2025-6pm EDT Jul 22, 2025

View Nearby Observations

Detailed Forecast

This Afternoon
ESE wind around 7 kt. Sunny. Waves 1 ft or less.
Tonight
SE wind 5 to 7 kt. Increasing clouds. Waves 1 ft or less.
Wednesday
S wind 6 to 8 kt. Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Waves 1 ft or less.
Wednesday Night
SW wind 5 to 7 kt. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers after 2am. Waves 1 ft or less.
Thursday
WSW wind 9 to 11 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Waves 1 ft or less.
Thursday Night
NW wind around 9 kt becoming NNE after midnight. Showers likely and possibly a thunderstorm before 8pm. Waves 1 ft or less.
Friday
NNE wind 6 to 8 kt becoming E in the afternoon. Mostly sunny. Waves 1 ft or less.
Friday Night
Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.
Saturday
Variable winds less than 5 kt becoming SSE 5 to 7 kt in the morning. A chance of showers, with thunderstorms also possible 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 77 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 Jul 15, 2025
Forecast Valid: 5pm EDT Jul 15, 2025-6pm EDT Jul 22, 2025
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