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Detroit/Pontiac, MI Local Forecast Office

4NM S Monroe MI

Marine Point Forecast

[NOTICE]
    • Today

      Today:SE wind 8 to 10 kt. Increasing clouds. Waves 1 ft or less.

      High: 64 °F

      SE 10kt
      < 1ft

    • Tonight

      Tonight:SSE wind 11 to 17 kt becoming SW after midnight. Winds could gust as high as 25 kt. Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 3am, then a chance of showers after 3am.   Waves 1 ft or less.

      Low: 52 °F

      SW 17kt
      < 1ft

    • Wednesday

      Wednesday:W wind 14 to 19 kt. Increasing clouds. Waves 1 ft or less.

      High: 58 °FFalling Temperatures

      W 19kt
      < 1ft

    • Wednesday Night

      Wednesday Night:NW wind 12 to 16 kt, with gusts as high as 22 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 44 °F

      NW 16kt
      < 1ft

    • Thursday

      Thursday:NNW wind around 12 kt. Mostly sunny. Waves 1 ft or less.

      High: 61 °FFalling Temperatures

      NNW 12kt
      < 1ft

    • Thursday Night

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

      Low: 46 °F

      Light Wind
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming SSW 6 to 11 kt in the morning. Partly sunny. Waves 1 ft or less.

      High: 68 °FFalling Temperatures

      ⇑SSW 11kt
      < 1ft

    • Friday Night

      Friday Night:S wind around 9 kt. Partly cloudy. Waves 1 ft or less.

      Low: 55 °F

      S 9kt
      < 1ft

    • Saturday

      Saturday:WSW wind 9 to 15 kt. Mostly sunny. Waves 1 ft or less.

      High: 80 °FFalling Temperatures

      WSW 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: 4:24 am EDT May 12, 2026
Forecast Valid: 11am EDT May 12, 2026-6pm EDT May 18, 2026

View Nearby Observations

Detailed Forecast

Today
SE wind 8 to 10 kt. Increasing clouds. Waves 1 ft or less.
Tonight
SSE wind 11 to 17 kt becoming SW after midnight. Winds could gust as high as 25 kt. Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 3am, then a chance of showers after 3am. Waves 1 ft or less.
Wednesday
W wind 14 to 19 kt. Increasing clouds. Waves 1 ft or less.
Wednesday Night
NW wind 12 to 16 kt, with gusts as high as 22 kt. Mostly cloudy. Waves 1 ft or less.
Thursday
NNW wind around 12 kt. Mostly 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 SSW 6 to 11 kt in the morning. Partly sunny. Waves 1 ft or less.
Friday Night
S wind around 9 kt. Partly cloudy. Waves 1 ft or less.
Saturday
WSW wind 9 to 15 kt. Mostly sunny. Waves 1 ft or less.

*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 May 12, 2026
Forecast Valid: 11am EDT May 12, 2026-6pm EDT May 18, 2026
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