After steady snow through much of the day Sunday, the flurries will taper off in the afternoon, KATU's Joe English says.
The threat of freezing rain will also end, however, snow showers will remain in the forecast into the evening.
Temperatures will hover around freezing, so should prepare for the chance of icy conditions through the morning commute Monday.
Forecasters said Sunday morning that most of the snow will fall west of the Portland Metro area and in the Columbia River Gorge.
The National Weather Service issued a Winter Weather Advisory for the Willamette Valley from the South Salem Hills northward through 10 p.m.
Heaviest precipitation bands have shifted northward and precipitation will continue to dwindle. Temperatures have also exceeded 32 degrees so the threat of freezing rain has dissipated. There may still be some lingering patchy freezing rain within the valleys of the Lane County below 1000 ft
The NWS dropped the advisory for the Southern Willamette Valley.
Areas above 500 feet have the highest chance of seeing anywhere from a trace to two inches of snowfall, the NWS said, while there's a "continued slight chance for freezing rain with ice accumulations of a light glaze."
The Portland Bureau of Transportation said it put down deicer while the roads were dry ahead of the snow, and said it has crews on standby.
The Multnomah County Joint Office of Homeless Services said the conditions don't meet their threshold for sever shelters, but say warming centers will still be open for those in need.
They ask people to keep an eye out for any vulnerable neighbors in need. If you see someone who is not prepared for the cold weather, or who doesn’t seem able to care for themselves in the weather can call the non-emergency line at (503) 823-3333 to request a welfare check.
Drivers should plan for slick road conditions if they hit the roads through the day Sunday.