Just thinking out loud here, but if the whole "singing" thing doesn't continue to work out, maybe Ed Sheeran should be a weatherman?
He gave the job a shot on Radio 1, telling viewers, "The weather outside is brisk. If you walk out you will get very, very pink cheeks very quickly. You will need some lip balm because your lips will dry and… that will happen. Also there is a chance that you will step in a puddle today so please do not wear slippers outside."
So, that's one way of announcing the news. You can listen to the segment below.