Yr is a must have free weather service provided by the Norwegian Meteorological Institute (met.no) and the Norwegian Broadcasting Corporation (NRK).
Yr uses detailed terrain models in their calculations, and is therefore more accurate in the mountains than any other weather service.
Yr is also fairly accurate on the coast. Although it does not have a wave forecast.
Yr has a desktop and mobile web version as well as an Android and an iOS app. We find that the mobile web version gives more details in the graph view than the app, as seen above.