Hazardous Weather Conditions

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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:S wind around 8 kt. Mostly clear. Waves 1 ft or less.

      Low: 54 °F

      S 8kt
      < 1ft

    • Saturday

      Saturday:SSW wind 10 to 15 kt becoming WSW in the afternoon. Showers and thunderstorms likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm.   Waves 1 ft or less.

      High: 78 °F

      SW 15kt
      < 1ft

    • Saturday Night

      Saturday Night:WSW wind 5 to 9 kt. A chance of showers and thunderstorms before 1am, then a chance of showers after 2am.   Waves 1 ft or less.

      Low: 58 °F

      WSW 9kt
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming ESE 5 to 10 kt in the morning. A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm.   Waves 1 ft or less.

      High: 74 °F

      ⇑ESE 10kt
      < 1ft

    • Sunday Night

      Sunday Night:ESE wind around 9 kt becoming S after midnight. A chance of showers and thunderstorms before 8pm.   Waves 1 ft or less.

      Low: 62 °F

      ESE 9kt
      < 1ft

    • Monday

      Monday:SSW wind 9 to 16 kt, with gusts as high as 22 kt. Sunny. Waves 1 ft or less.

      High: 86 °F

      SSW 16kt
      < 1ft

    • Monday Night

      Monday Night:SSW wind 11 to 13 kt, with gusts as high as 20 kt. A chance of showers and thunderstorms after 2am.   Waves 1 ft or less.

      Low: 67 °F

      SSW 13kt
      < 1ft

    • Tuesday

      Tuesday:SW wind 14 to 20 kt. A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm after 2pm.   Waves 1 ft or less.

      High: 83 °F

      SW 20kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SW wind 13 to 15 kt, with gusts as high as 21 kt. Showers likely and possibly a thunderstorm.   Waves 1 ft or less.

      Low: 60 °F

      SW 15kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:49 pm EDT May 15, 2026
Forecast Valid: 11pm EDT May 15, 2026-6pm EDT May 22, 2026

View Nearby Observations

Detailed Forecast

Overnight
S wind around 8 kt. Mostly clear. Waves 1 ft or less.
Saturday
SSW wind 10 to 15 kt becoming WSW in the afternoon. Showers and thunderstorms likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Waves 1 ft or less.
Saturday Night
WSW wind 5 to 9 kt. A chance of showers and thunderstorms before 1am, then a chance of showers after 2am. Waves 1 ft or less.
Sunday
Variable winds less than 5 kt becoming ESE 5 to 10 kt in the morning. A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Waves 1 ft or less.
Sunday Night
ESE wind around 9 kt becoming S after midnight. A chance of showers and thunderstorms before 8pm. Waves 1 ft or less.
Monday
SSW wind 9 to 16 kt, with gusts as high as 22 kt. Sunny. Waves 1 ft or less.
Monday Night
SSW wind 11 to 13 kt, with gusts as high as 20 kt. A chance of showers and thunderstorms after 2am. Waves 1 ft or less.
Tuesday
SW wind 14 to 20 kt. A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm after 2pm. Waves 1 ft or less.
Tuesday Night
SW wind 13 to 15 kt, with gusts as high as 21 kt. Showers likely and possibly a thunderstorm. Waves 1 ft or less.

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

The water temperature at Belle Isle is missing.


*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: 9:49 pm EDT May 15, 2026
Forecast Valid: 11pm EDT May 15, 2026-6pm EDT May 22, 2026
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