I've always found it silly that some radio stations insist on giving temperatures for multiple municipalities in the same region. (i.e. "In Kirkwood, it's 83 degrees, Webster Groves reports 82, and it's 84 degrees in Ladue.") I always think, "These towns are all part of the same metro region. The temperatures aren't going to vary that much."
Then again, in this parochial city of St. Louis, with its 88 municipalities, maybe mentioning specific towns frequently reinforces the local nature of radio and keeps people listening longer.