So the only way to find a weather source that has the features your looking for is to install each weather polygot and then see what is offered? There isnt anywhere that list the data that will be available for each?
I've very very "green" to the polisy polygot world and I'm a bit intimidated at the prospect of having to activate so many sources successfully...
For the record I'm looking for a data field that shows the high temp of the current day "so far". I think this value was part of the old weather link that the isy originally had many years ago.