Open right now. Here is a copy of the current wait time camera in Eatontown. Last I saw there was barely any wait at all. If you can beat the snow you'll be good. If I start a coming down heavy, I'd call. They're usually open until 4:30 on Wednesday's http://pweb.nj-cleanair.com/waitqueue/pages/facility/home.jsf
Not sure because of the weather forecast- best to call them before you go there..
Thanks! Your answer is awaiting moderation.