Probably, I know Sunday River has been blowing all weekend they will be open. I dont know if killington has, but if they have they will probably be open. one day of light rain wouldn't melt a whole weeks worth of blowing snow.
they were open last weekend.. cant imagine this weekend will be any different. cold temps at night are allowing lots of VT resorts blow snow. They should kick into high gear next week as sunday will be colder with overnights in the 20s