Another simple weather website, that not only answers the question "Do I need a jacket?" but also defines how heavy that jacket should be, whether you also need sunglasses, umbrella, hat, gloves, scarf, etc...by showing you images of how certain people would look when dressed for the weather.
Obama is the default, but you can also choose from Bender, House, Angelina Jolie, Bruce Lee, and Ashton Kutcher.