Riding the monorail

Can you ride the monorail on a non park day?

We check in tomorrow but don’t go to a park till Wednesday. I’d like to ride the Epcot loop.

yes. Both the MK and Epcot Stations let you off outside the parks (unlike Disneyland). No admission ticket is required to board or ride.

The monorail is free, though you may have to pay for parking, unless you have an Annual Pass or dining reservation somewhere on the monorail loop, though if you go late enough in the day, then the tollbooths are often closed.