It is a meat locker in that theatre. As of a few weeks ago, a sweater WILL NOT be enough, at least if you want to enjoy the show. I moderate to heavy coat would be good.
"He found something that he wanted, had always wanted and always would want— not to be admired, as he had feared; not to be loved, as he had made himself believe; but to be necessary to people, to be indispensable."
-F. Scott Fitzgerald's This Side of Paradise