Wait wait wait wait wait. They have their arms on display? God damn harlots. And those men in their ties, advertising auto-erotic asphyxiation (the twelve letter word beginning with a followed by s) as though it's something to flaunt about!
I'm gonna write in.
Seriousness aside, elderly English gentlemen make the best weathergirls.
I would 100% tune in to watch ugly people do the weather if they were hilarious. I can think of a number of comedians that would do it great.
Otherwise, pretty ladies, sure, why not? I mean, if the only choice is "attractive/unattractive, everything else will be the same" then attractive seems like the only reasonable choice.
EDIT: Although if the attractive person has a grating voice then, yeah, I'll go for the other option. Thankfully they don't put people with grating voices on the weather.
Bow before the mighty Javoo!