Travel is looking clear on both ends of my trip on Tuesday. That said ... I don't know (yet) from where the aircraft is coming that will take me to my destination. Sometimes it's not about the weather on either end of the trip. If it's one of those routes that is just back and forth, great; but often it's coming from elsehwere. So, I have gotten into the habit when I fly American to check the onbound flight of the inbound flight of the inbound flight to determine how my travel day may go. (Can't seem to do that on Southwest as they tend not to give out inbound aircraft information when you check flight status info. And once when I asked a gate agent from where the aircraft was coming for our flight, she answered 'Why do you need to know that?' and I said, 'So I can track potential delays for myself.' She scoffed and said, 'You don't need to know that.' I mean, what?)