Earlier quoted context omitted.
> do I make any decisions based on what my weather app is telling me? No. Do you not ever go outside? I can't imagine not caring about the forecast, I make decisions based on it every single day.
Sure. All the time - I'm a runner, a walker, I have teen kids who like walking, we have a dog. But is any of this really changed by knowing it's going to rain? Nope. I stick my nose out on a morning - if it's cold, I put on a warm coat. If it's going to rain, I put on something rainproof. No need for an app. Or, sadly, a chart or a graph...
Obviously I can imagine living without a weather app, but I genuinely can't imagine having one but not finding it useful. One of the things people loved about Dark Sky was not just knowing whether it is or isn't going to rain, but that it's going to rain in precisely 35 minutes, I have time to bike to the store instead of driving. I used this a lot and it was very accurate.