It is possible to get the data from a specific weather station if you know the MAC address. This function is provided by apiNetatmo, but it would be nice to have it included in the official plugin.
This is not to be confused with the public stations in a specific area. This is already supported, but the source can not be defined down to the station.
In the mentioned plugin above you can just set the MAC address and get the stations data. Very useful.
I hope this addition can be done.
I am pretty sure this is actually not supported by the Netatmo API. You cannot access an arbitrary device without getting permission by the owner. So I highly doubt that this does actually work the way it is advertised.
This works. I know the owner and it is part of the API.
Basically you have to allow access for public use (weathermap) and then anyone can access this data (outdoor sensors only). The MAC address is also visible in the API to begin with.