I may have a partial answer. I deleted the security ap I was using, it was horrible, and downloaded another one which I'll use for a week or so and then decide whether to purchase.
But after deleting the old one and installing the new one, I started getting the Google weather again on the swipe down. Still no icon on the notification/status bar, but at least I have a notification from Google weather when I swipe down. Well MOST of the time. And touching the notification, I get the full google weather ap display.