I am personally interested in weather forecast and related stuff. Currently, I use a French weather service called MeteoGroup, they have an iOS app on the App Store called WeatherPro which btw also supports Netatmo (being a French product). Their weather service and forecasts have proven to be the most precise (and true in hindsight) of all weather services I have been using to date. This also goes for the comparison to METNO. 

With my RainMachine, I now have a real usage for accurate weather data for the first time. Therefore, it would be terrific if this weather service could be used with my RainMachine. However, I dislike the idea of picking data from their website using a screen parser for reasons of reliability - I prefer to setup up my RainMachine ind (ideally) forget about it. Therefore I strongly recommend you look into their weather service and see if it can be integrated in RainMachine's software as an alternative to METNO in Europe.  

Regards
Daniel