clammy, rainy, sometimes a bit warm, sometimes chilly

I used to live around there in New Jersey. It's very unpredictable but it should not be freezing cold if we have to camp out. Could be raining bad though. You never know. Sorry I couldn't help more.

Every year is different but the last time I went in March it was like 45? But it could range from about 40s-50s just check the weather forecast when it gets closer to time