Rising temperatures mean little snow is likely to fall in Shelton later today, with some snow and sleet and mostly rain expected. As of 11:30 a.m. on Saturday in Shelton, it's 37 degrees in Shelton. The National Weather Service (NWS) expects combined snow and sleet before 3 p.m. today, changing to all rain in the course of the early evening. Up to an inch of combined snow and sleet could accumulate before the change-over to all rain. More snow is expected in upstate Connecticut, where the change-over due to rising temperatures will occur later. The NWS has issued a Winter Weather Advisory for Litchfield, Hartford, Tolland and Windham counties in Connecticut, where up to 3 inches of snow is possible before the rain arrives. Will be in high 50s on Sunday In Shelton, temperatures could be as high as 43 degrees by 4 a.m. Sunday, and the daytime high on Sunday could go as high as 57 degrees. The rain will continue on Sunday during the day, with a thunderstorm possible. The rain should end about 9 p.m. Sunday. The daytime high Sunday will be about 57 degrees in Shelton, the NWS said. Next week, temperatures will drop will the arrival of arctic air \u2014 the daytime high will only be 18 degrees on Thursday in Shelton, and the overnight low Wednesday into Thursday should be around 6 degrees, according to the NWS.