I started working on this last night. Should hopefully have a historical tide solution soon. I don't want it to be something you can just automatically slide left on because the amount of data it would have to load in on every time the app loads would be massive. But there's a few ways I can probably make it work.The app that I have on my phone (tide graph) lets you look at tides for dates in the past. I think that many of the other apps that I have used do too. Doesn’t have the nice sliding hourly thing though!
Additionally: If and when this particular app takes off with its own pile of subscribers and support, I can potentially add historical weather data as well. But that is cost prohibitive at the moment.
