Hazardous Weather Conditions

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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Waves 1 ft or less.

      Low: 53 °F

      SE 7kt⇓
      < 1ft

    • Friday

      Friday:ESE wind 5 to 10 kt. Isolated showers before 10am, then a chance of showers and thunderstorms after 2pm.   Waves 1 ft or less.

      High: 68 °F

      ESE 10kt
      < 1ft

    • Friday Night

      Friday Night:ESE wind around 7 kt becoming WNW after midnight. Showers and thunderstorms likely.   Waves 1 ft or less.

      Low: 51 °F

      ESE 7kt
      < 1ft

    • Saturday

      Saturday:NW wind 9 to 11 kt. A chance of showers before 8am.   Waves 1 ft or less.

      High: 59 °F

      NW 11kt
      < 1ft

    • Saturday Night

      Saturday Night:NE wind 7 to 9 kt. Partly cloudy. Waves 1 ft or less.

      Low: 44 °F

      NE 9kt
      < 1ft

    • Sunday

      Sunday:NE wind 8 to 10 kt becoming E in the afternoon. Mostly sunny. Waves 1 ft or less.

      High: 56 °F

      E 10kt
      < 1ft

    • Sunday Night

      Sunday Night:E wind around 10 kt. Partly cloudy. Waves 1 ft or less.

      Low: 48 °F

      E 10kt
      < 1ft

    • Monday

      Monday:E wind 10 to 17 kt. Mostly sunny. Waves 1 ft or less.

      High: 63 °F

      E 17kt
      < 1ft

    • Monday Night

      Monday Night:ESE wind 17 to 21 kt, with gusts as high as 28 kt. A chance of thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers after 2am.   Waves 1 ft or less.

      Low: 55 °F

      ESE 21kt
      < 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 23, 2026
Forecast Valid: 7pm EDT Apr 23, 2026-6pm EDT Apr 30, 2026

View Nearby Observations

Detailed Forecast

Tonight
SE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Waves 1 ft or less.
Friday
ESE wind 5 to 10 kt. Isolated showers before 10am, then a chance of showers and thunderstorms after 2pm. Waves 1 ft or less.
Friday Night
ESE wind around 7 kt becoming WNW after midnight. Showers and thunderstorms likely. Waves 1 ft or less.
Saturday
NW wind 9 to 11 kt. A chance of showers before 8am. Waves 1 ft or less.
Saturday Night
NE wind 7 to 9 kt. Partly cloudy. Waves 1 ft or less.
Sunday
NE wind 8 to 10 kt becoming E in the afternoon. Mostly sunny. Waves 1 ft or less.
Sunday Night
E wind around 10 kt. Partly cloudy. Waves 1 ft or less.
Monday
E wind 10 to 17 kt. Mostly sunny. Waves 1 ft or less.
Monday Night
ESE wind 17 to 21 kt, with gusts as high as 28 kt. A chance of thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Waves 1 ft or less.

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

The water temperature at Belle Isle is 50 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 23, 2026
Forecast Valid: 7pm EDT Apr 23, 2026-6pm EDT Apr 30, 2026
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