This is why I don't understand the complaints that iOS precipitation accuracy is worse than Dark Sky's. The map works the same way. The chart works the same way. Complaints about UX I get. But not the complaints about a supposed fall in precipitation accuracy.
I get that it's a common trope that products always supposedly get worse once they're bought. But in this case, in terms of accuracy, I just don't think it's true. And remember, Apple would have zero reason to worsen the quality. The whole point of buying it was to improve iOS weather. Which it did.