Well, we have a chief met here in Phoenix who also plays anchorman on the 6:30pm newscast. It's strange to see him reading the news and, then, stand up to do the weather forecast. Also, at WCMH in Columbus and KOMO in Seattle, the weekend am weather forecasters also co-anchor the newscast.
IIRC, this used to be a common practice back in the 70's when they first hired female weather anchors. The female weather anchor might read lifestyle stores, do the trivia contest, and forecast the weather (but never the "hard" news).