Dec. 18. We’re looking at two fine, sunny winter days today and Saturday with highs around 46-48. Saturday night, though, there is a slight chance of rain and snow around 3 am. Sunday mostly cloudy, with a high near 50. A dip in the jet stream will be in charge of the weather in the eastern half of the country at least through Christmas. The National Weather Service forecast goes out to Thursday, Christmas Eve. It says this: 40 percent chance of showers. Partly sunny, with a high near 56. Check the local weather here.