Araneus diadematus
(Cross Orb-weaver)

During the day hours I don’t see it and there are 2. One in one window and the other in another window, same room. Last night was the first time spotting them and I would say they both are the same size. About the size of a quarter or a little bigger. They just seemed to sit there but I was not going to disturb either of them. I think they may be a garden spider variety but I am unsure if they are poisonous.