I don't know how exactly water temperature are measured, but here are some links with info:

www.coastwatch.msu.edu/michigan/m54.html

…noaa.gov/cwdata/lct/glsea.gif

Air temperature is forecast to be a high of 82 on Sunday (though that could change). It will probably reach that around 3-4pm, with temps a few degrees cooler (probably not more than 5 or so) at noon.

Thanks for the assistance! Its a lot warmer than here in Ireland anyway!

Latest weather forecast:

82 - high

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66 - low Extensive cloudiness, hazy, humid. (Dew points in the upper 60s). Showery spells—t-storms possible. Not quite as warm. Winds shift NNE but remain light overall

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