baggy pm in the fall?

Silly question - I love my blue baggy pm - used it most of the summer so to me it's sort of a summery bag. Can I get away with this bag during the fall and winter months?

In the fall, yes as long as its not raining. In the winter, I'm not sure I'd look that hot with a thick winter coat! If I were you I'd carry the speedy in the winter instead.