The coldest weather of the season is on tap starting this holiday weekend and extending into next week in Western Washington.

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

Poor air quality affects everyone's health. During the winter, many parts of Utah, especially along the Wasatch Front, experience what are known as temperature ...

A ridge of high pressure will dominate the region for most of the week, leading to stable conditions. There could be some areas of fog/stratus in the valleys. Daytime highs will be near normal in ...