A gloomy, rainy Friday in Massachusetts is on track to see some snowfall, with some localized totals between 3 and 4 inches. What have been hours of rain and drizzle should be met with colder air moving to southern New England, with a chance for rain to become snow near or north of Route 2 between 6 and 9 p.m., and between 9 p.m. and 12 a.m. Saturday on the Interstate 90 corridor, according to the National Weather Service…