Dilemma: you've got a pile of unworn sweaters and scarves and tights and knits, but donning one in this temperature would probably result in social suicide. Solution: capelets. The color and texture is the right idea for fall, but the beautiful thing about capelets is that it gives your sweaty bits a much needed breeze. Follow this Cobrasnake girl's lead: wear it over something dark and simple (and short, please. There's not need to stifle your naughty bits too).
Edit: upon further examination, I am inclined to say that she's actually just tied a plaid shirt around her neck. But, in either case, capelets are still hot. Yee.