In a season seven episode, Andy and Tom go to Chicago to see Andy's ex-girlfriend. As they are walking around the windy city, Lucy, Andy's ex says "I think you're really gonna like it here. And obviously, everyone’s in a really great mood now because of the Cubs winning the series.” The important thing to remember here is that this episode takes place in summer of 2017.  Which means the producers of Parks And Rec were more accurate with their prediction than Back To The Future 2!