Apple's Weather app has been around forever, at least, for iPhone, and it's gone through many design changes over the years. But we're at a point now where we can actually customize how the Weather app looks and feels in a number of different ways, some of which you probably haven't even considered. 1. Add All the Cities I'm sure everyone knows this already, but I have to mention it — you can add cities to Weather. The default view is for "My Location," but you can add up to 19 cities to view in a list or swipe through. To add a city, tap the list button in the bottom right, then use the... more