Cold weather advisory: Be Aware. A cold weather advisory is issued when seasonably cold air temperatures or wind chill values ...

The National Weather Service issued a cold weather advisory through 10 a.m. Sunday for the Portland metro area.

Heavy snow and high winds are forecast to impact travel on Oregon’s Cascade Mountain roads and passes from Thursday night ...

The long stretch of sunny and dry weather comes to an end on Thursday as clouds increase and Portland prepares for rain and potential snow.

The National Weather Service has simplified some of its winter weather alerts for Wind Chill and Extreme Cold Warnings.

Forecasters are warning that air pollution may become trapped and adversely affect humans, due to weather conditions in the U.S.

Portland’s air quality is currently comparable to Los Angeles, despite the ongoing wildfires in Southern California.

Rain and snow is returning to Oregon this weekend, and low elevation snow and ice will become possible next week.

The sky may be clear in Portland, but the temperatures remain low, leading the National Weather Service to issue another cold ...

PORTLAND, Ore. (KOIN) — As Arctic air blankets the eastern United States, the National Oceanic and Atmospheric Administration has released its latest weather ... of western Oregon and Washington.

Portland and much of western Oregon can expect a chilly and sunny Saturday, followed by another night of frigid temperatures. The National Weather Service in Portland issued a cold weather advisory ...