Much colder air settles into the region this week, with chances for snow in the forecast as Halloween approaches. Temperatures are expected to be well below average and the National Weather Service predicts periodic chances for light snow, with little accumulation expected with the first round overnight tonight. Residents are reminded to winterize their homes and vehicles and to be prepared in case of potential slick roads, especially in the early morning hours Tuesday. Another round of snow may be brewing overnight Wednesday into Thursday, with more light accumulations remaining possible. Stay tuned to KNIA/KRLS for the latest weather information.