The weather is a good starting point. How was your weekend? Any thing good planned for your holiday/ weekend? If they’re a talker they’ll fill in the space, if not then they’ll give perfunctory replies and you can revert to happy silence
That's a great strategy, I tend to ask a lot of questions when I'm in those situations too, just so I have to do as little talking as possible. People love talking about themselves too so I pretend to be interested in the bits they share about their life.
I guess it's just a bit hard to roll with it when you're really not interested at all, there are people with whom I like making chit chat. Others I have nothing in common with and it's an absolute chore.