CARROT Weather for iOS was updated today with a marvelous new feature: Time Travel. I can now look back or forward to either see historic weather or to plan my holiday adventures.
Carrot Weather also received a facelift that seems squarely aimed at the new iPhone X, eliminating some of the chrome but adding new controls to access the settings and the new Time Travel feature.
I don't usually like snarky apps because I'm already all the snark I can take. But the updates to Carrot Weather in the past few months are very compelling. The Weather Underground source is very good in my location. The amount of information in the app and the widget is just right. My biggest complaint is the delay required for updating but it's no worse than every other app I use.