As a cold front moves in, Portland could see snow this week, with updated forecasts predicting accumulation in the region. Light snow is possible overnight Monday into Tuesday, with some predictions estimating 1-2 inches by Tuesday morning. The beginning of the week will be mild and sunny, but transition to rain and cooler temperatures is expected as the week progresses. A rainy Tuesday is on the horizon, followed by potential thunderstorms. After a rainy weekend, Portland residents are urged to prepare for wet conditions and possible lowland snow in the coming days.