Hazardous Weather Conditions

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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]
    • Tuesday

      Tuesday:Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

      High: 79 °F

      Light Wind
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. A chance of thunderstorms after 5am.   Waves 1 ft or less.

      Low: 71 °F

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming S around 6 kt in the morning. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm.   Waves 1 ft or less.

      High: 82 °F

      ⇑S 6kt
      < 1ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. Showers likely before 8pm.   Waves 1 ft or less.

      Low: 70 °F

      Light Wind
      < 1ft

    • Thursday

      Thursday:Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

      High: 81 °F

      Light Wind
      < 1ft

    • Thursday Night

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

      Low: 70 °F

      Light Wind
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming SE around 6 kt in the afternoon. Sunny. Waves 1 ft or less.

      High: 83 °F

      ⇑SE 6kt
      < 1ft

    • Friday Night

      Friday Night:ESE wind around 6 kt. Partly cloudy. Waves 1 ft or less.

      Low: 74 °F

      ESE 6kt
      < 1ft

    • Saturday

      Saturday:S wind 6 to 10 kt. A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm.   Waves 1 ft or less.

      High: 86 °F

      S 10kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:13 am EDT Jul 8, 2025
Forecast Valid: 3am EDT Jul 8, 2025-6pm EDT Jul 14, 2025

View Nearby Observations

Detailed Forecast

Tuesday
Variable winds 5 kt or less. Sunny. Waves 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. A chance of thunderstorms after 5am. Waves 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming S around 6 kt in the morning. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Waves 1 ft or less.
Wednesday Night
Variable winds 5 kt or less. Showers likely before 8pm. Waves 1 ft or less.
Thursday
Variable winds 5 kt or less. Sunny. Waves 1 ft or less.
Thursday Night
Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.
Friday
Variable winds less than 5 kt becoming SE around 6 kt in the afternoon. Sunny. Waves 1 ft or less.
Friday Night
ESE wind around 6 kt. Partly cloudy. Waves 1 ft or less.
Saturday
S wind 6 to 10 kt. A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms 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 74 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: 3:13 am EDT Jul 8, 2025
Forecast Valid: 3am EDT Jul 8, 2025-6pm EDT Jul 14, 2025
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