Chicago’s media watcher, Robert Feder reports today that former WTAE-TV weather man Demetrius Ivory is engaged. Ivory proposed to his WGN co-worker Erin McElroy and the couple plan to marry in December. Few knew that the couple had been dating until just a few weeks ago. McElroy is a co-anchor during the station’s 4:00-6:00 a.m. newscast, the same newscast during which Ivory reports. He left WTAE to join WGN in 2013.