Hazardous Weather Conditions

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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]
    • Today

      Today:WSW wind 9 to 13 kt. A chance of showers and thunderstorms, mainly between 2pm and 3pm.   Waves 1 ft or less.

      High: 83 °F

      WSW 13kt
      < 1ft

    • Tonight

      Tonight:NW wind 6 to 9 kt. Mostly clear. Waves 1 ft or less.

      Low: 62 °F

      NW 9kt
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. Sunny. Waves 1 ft or less.

      High: 81 °F

      ⇑S 8kt
      < 1ft

    • Sunday Night

      Sunday Night:SSW wind 6 to 9 kt. Showers likely, with thunderstorms also possible after 5am.   Waves 1 ft or less.

      Low: 70 °F

      SSW 9kt
      < 1ft

    • Monday

      Monday:WSW wind around 12 kt. Showers likely and possibly a thunderstorm before 8am, then a chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am.   Waves 1 ft or less.

      High: 82 °F

      WSW 12kt
      < 1ft

    • Monday Night

      Monday Night:W wind 7 to 9 kt. Showers and possibly a thunderstorm before 5am, then showers likely.   Waves 1 ft or less.

      Low: 69 °F

      W 9kt
      < 1ft

    • Tuesday

      Tuesday:W wind around 8 kt. Showers likely before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm.   Waves 1 ft or less.

      High: 80 °F

      W 8kt
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Showers likely, mainly before 2am.   Waves 1 ft or less.

      Low: 67 °F

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:NNE wind around 6 kt becoming S in the afternoon. A chance of showers before 8am, then a chance of showers and thunderstorms after 2pm.   Waves 1 ft or less.

      High: 79 °F

      SE 6kt
      < 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 am EDT Aug 8, 2026
Forecast Valid: 5am EDT Aug 8, 2026-6pm EDT Aug 14, 2026

View Nearby Observations

Detailed Forecast

Today
WSW wind 9 to 13 kt. A chance of showers and thunderstorms, mainly between 2pm and 3pm. Waves 1 ft or less.
Tonight
NW wind 6 to 9 kt. Mostly clear. Waves 1 ft or less.
Sunday
Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. Sunny. Waves 1 ft or less.
Sunday Night
SSW wind 6 to 9 kt. Showers likely, with thunderstorms also possible after 5am. Waves 1 ft or less.
Monday
WSW wind around 12 kt. Showers likely and possibly a thunderstorm before 8am, then a chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am. Waves 1 ft or less.
Monday Night
W wind 7 to 9 kt. Showers and possibly a thunderstorm before 5am, then showers likely. Waves 1 ft or less.
Tuesday
W wind around 8 kt. Showers likely before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Waves 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. Showers likely, mainly before 2am. Waves 1 ft or less.
Wednesday
NNE wind around 6 kt becoming S in the afternoon. A chance of showers before 8am, 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 78 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 am EDT Aug 8, 2026
Forecast Valid: 5am EDT Aug 8, 2026-6pm EDT Aug 14, 2026
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