The National Weather Service issued a frost advisory at 1:26 p.m. on Saturday valid from 10 p.m. until Sunday 8 a.m. for Westchester County.The weather service informs, "Temperatures as low as 32 degrees will result in frost formation. Typically colder locations in coastal southeastern Connecticut a nd the Pine Barrens of Long Island may experience a few hours of sub-freezing temperatures." ...read more read less