I have not seen anything that indicates Rainier or other volcanos are "overdue" for an eruption. Rainier, like others, goes through periods of greater or lesser

I have not seen anything that indicates Rainier or other volcanos are "overdue" for an eruption. Rainier, like others, goes through periods of greater or lesser activity. It's hard to predict the size of any particular eruption, as we saw at Mt St. Helens in 1980. The biggest risk from Rainier currently is lahars, aka mudflows. You don't need an eruption for those. The last big one was Kautz Creek in 1947. If you live in one of the valleys around Rainier there's a reasonable chance of seeing a lahar in your lifetime. (Hopefully from somewhere out of harm's way.)