Vote 1: HIRLAM

I saw that you need radar data from Portugal, the local Met Institute provides that data, but it's probably really hard to get as they provide it in the form of an image, here: http://www.ipma.pt/en/otempo/obs.radar/

EDIT: Looks like they provide that data in a map form too: https://www.ipma.pt/en/otempo/obs.remote/index.jsp

You should add a mode, which could be used in an iPhone widget, providing the essentials, max. temperature, min., the overall state of the weather through the day, showing an overview of the week with that info.