Hi @rossko57,
I am not aware of any existing solution for your request but I like the idea behind it. If you need it quickly I would suggest to implement the transformation (MAP?) approach. Here you can find a list of the common ID mappings of the 1.x weather binding.
For the long run I would suggest to implement it in the weather bindings itself. But it does not make sense that every weather binding implements the mapping on its own - it is hard to maintain. Thus a global place for it should be preferred.
IIRC an experimental binding for weather calculations is available via the Eclipse Marketplace. Maybe that is an idea.
My 2ct. Wdyt?