Yes, we had mist and fog yesterday and a bit this morning. I'm not quite ready for the cold weather to begin. And, for heaven's sake, please not another Fall and Winter with non-stop rain, floods and rock slides...
As for Labor Day, it was just a day off of work when I was working. If not working, a day like any other, unless you needed a bank or government service. I don't really think about the U.S. holidays anymore.