Snow is possible Sunday evening in the Willamette Valley area with uncertain prospects for accumulation on Monday, the National Weather Service says.

"We really haven't been cold enough" for snow accumulation, meteorologist Paul Tolleson said Saturday morning. "The ground, and the roads are fairly warm. It will take a while to make the road surface cool enough for there to accumulation. It will melt initially."

On Saturday, cloudy skies and isolated showers are expected through 4 p.m., then rain afterwards, with a high near 52. The chance of precipitation is 60 percent. Saturday night, the temperature will be around 48 and up to a half inch accumulation of rain.

Sunday, rain is expected before 10 a.m., followed by showers through 4 p.m.

While the possibility of snow in the metro area appears uncertain, that's not the case in the mountains.

Between 5 to 10 inches are expected late Saturday night and during Sunday at Mount Hood, Tolleson said. The passes would be at the low side; Timberline Lodge and equivalent elevations would be at the high side.

Another 6 inches of snow, probably more at Timberline, are expected Monday, he said.

-- Allan Brettman