Hazardous Weather Conditions

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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SW wind around 9 kt. Showers and thunderstorms, mainly before 3am, then showers likely and possibly a thunderstorm after 4am.   Waves 1 ft or less.

      Low: 60 °F

      SW 9kt
      < 1ft

    • Thursday

      Thursday:WSW wind 10 to 14 kt. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am.   Waves 1 ft or less.

      High: 69 °F

      WSW 14kt
      < 1ft

    • Thursday Night

      Thursday Night:W wind 5 to 9 kt becoming NW after midnight. A chance of showers and thunderstorms before 8pm.   Waves 1 ft or less.

      Low: 52 °F

      W 9kt
      < 1ft

    • Friday

      Friday:NNE wind around 6 kt becoming ESE in the afternoon. Partly sunny. Waves 1 ft or less.

      High: 62 °F

      ESE 6kt
      < 1ft

    • Friday Night

      Friday Night:ESE wind 8 to 10 kt. Showers likely and possibly a thunderstorm, mainly after 5am.   Waves 1 ft or less.

      Low: 52 °F

      ESE 10kt
      < 1ft

    • Saturday

      Saturday:S wind 12 to 17 kt becoming WSW in the afternoon. Winds could gust as high as 23 kt. Showers and possibly a thunderstorm before 11am, then showers between 11am and 2pm, then a chance of showers and thunderstorms after 2pm.   Waves 1 ft or less.

      High: 66 °F

      SW 17kt
      < 1ft

    • Saturday Night

      Saturday Night:W wind 12 to 14 kt, with gusts as high as 20 kt. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am.   Waves 1 ft or less.

      Low: 38 °F

      W 14kt
      < 1ft

    • Sunday

      Sunday:W wind 12 to 18 kt, with gusts as high as 24 kt. Mostly sunny. Waves 1 ft or less.

      High: 48 °F

      W 18kt
      < 1ft

    • Sunday Night

      Sunday Night:WNW wind 8 to 14 kt, with gusts as high as 20 kt. Partly cloudy. Waves 1 ft or less.

      Low: 31 °F

      WNW 14kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:49 pm EDT Apr 15, 2026
Forecast Valid: 8pm EDT Apr 15, 2026-6pm EDT Apr 22, 2026

View Nearby Observations

Detailed Forecast

Tonight
SW wind around 9 kt. Showers and thunderstorms, mainly before 3am, then showers likely and possibly a thunderstorm after 4am. Waves 1 ft or less.
Thursday
WSW wind 10 to 14 kt. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am. Waves 1 ft or less.
Thursday Night
W wind 5 to 9 kt becoming NW after midnight. A chance of showers and thunderstorms before 8pm. Waves 1 ft or less.
Friday
NNE wind around 6 kt becoming ESE in the afternoon. Partly sunny. Waves 1 ft or less.
Friday Night
ESE wind 8 to 10 kt. Showers likely and possibly a thunderstorm, mainly after 5am. Waves 1 ft or less.
Saturday
S wind 12 to 17 kt becoming WSW in the afternoon. Winds could gust as high as 23 kt. Showers and possibly a thunderstorm before 11am, then showers between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Waves 1 ft or less.
Saturday Night
W wind 12 to 14 kt, with gusts as high as 20 kt. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Waves 1 ft or less.
Sunday
W wind 12 to 18 kt, with gusts as high as 24 kt. Mostly sunny. Waves 1 ft or less.
Sunday Night
WNW wind 8 to 14 kt, with gusts as high as 20 kt. 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 49 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: 4:49 pm EDT Apr 15, 2026
Forecast Valid: 8pm EDT Apr 15, 2026-6pm EDT Apr 22, 2026
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