A trough of low pressure progressing through the Pacific Northwest will bring cooler temperatures, rain, snow, and the chance of thunderstorms to the north state. As the system tracks eastward through Washington, the trough will draw plenty of moisture through the West Coast, and ultimately, leave the north state with the potential for wet weather. Temperatures are expected to be in the mid 70's on Monday afternoon, and only climb into the mid 60's on Tuesday afternoon in the valley. Snow levels could drop to as low as 4000 feet from this system that could provide upwards of 3 inches of snow above 5000 feet. The mix of rain, and snow could impact travel along higher passes, and commuters are asked to use caution while navigating the slick conditions. There will also be the potential for thunderstorms throughout the valley on Tuesday. These thunderstorms could produce isolated areas of heavy showers, and even the potential for hail. The impacts from this system look to be brief, and most of the activity should subside by late Tuesday night. Wednesday will bring a break from the wet weather, and a slight warm up to the region. The next system is projected to arrive on Friday, and bring more wet weather, and much cooler temperatures to the north state for your weekend forecast.