With Apple killing off Dark Sky, I was looking for a replacement and happened across Mary sky. It seems like a pretty darn good replacement for dark sky with an almost clone-like interface. The app is powered by the pirate weather API, so the data source is a bit different than dark skies homegrown weather prediction model. There isn’t a mobile app but it does render very nicely in a web browser. If you want to check it out, just head over to https://merrysky.net/.