I have seen many very well done & useful weather sites, many for kitesurfing.
But all seem to be local inventions and creations, and thus not portable.
It would be nice if someone would (or has?) create a site which was open-source, and portable, in that it could be easily customized to use some public weather sources, and you would just configure with a zip or international code, and then it would provide a framework for local conditions, webcam(s) (if available, history, tides, etc.
Yes, iKitesurf has some of that, but not for many non-famous local sites. And their wind forecasts for inland lakes are generally way off - 2-3x reality.
If there is already such a software system or framework, I'd love to hear of it.