We are traveling next week (Jan 19-23) and the weather looks to be sunny but only a high of 60 or so, lows in the upper 30's. We don't plan on being out at night (the latest will be 8pm when MK closes). I have forgotten what 60 feels like since its been 0 around here for the last week or so. Will jeans and long sleeve t-shirts with a zip-up fleece jacket be ok? I am bringing winter hats for the kids to keep their ears warm at night but I was hoping to avoid bringing our winter coats.