There are a ridiculous number of iPhone apps that can tell you the weather.  I have purchased a whole bunch of them, partly because weather apps are inherently useful, but also because whenever I find one with an interface or a feature that I like, it is often not long before another one comes along that seems like it might be better.  But for quite a while now, I’ve stuck with just one Weather app on the home screen of my iPhone:  Weather Line, which is currently on sale for only $1.99.  Here’s why this has been my favorite weather app, and perhaps it will appeal to you as well. . . .