You know the organisers cannot do anything about the weather. Look at all the weather problems Wimbledon had till they built a roof, I mean look at all the rain that fell on Wimby over the years. Andy got his night under the lights, and did not start real late, although I know it was real late for you in the UK.
They can't change the weather, but they can anticipate that it might rain, as often happens in New York at the end of August.
The Wimbledon schedule has always come with a bit of give in it, in anticipation that it might rain. They don't start with the third round matches being spread over three days deliberately. They hold off on the start of doubles to make sure it can happen, and do their best to avoid scheduling so that one player has a much longer break than their next opponent.
They try really hard to keep the middle Sunday free, which isn't just to appease the local residents, it has the bonus of re-setting the draw a bit, avoiding giving the half of the draw playing second too much of a disadvantage.
I know tv people would rather the play was spread out more, so you don't have two top matches on at the same time, but that conflicts with making the draw and scheduling as fair as possible.