Good air quality (0-50) Primary pollutant PM2.5 8. ... Higher pressure is usually associated with sunny weather, lower pressure with stormy weather. The temperature to which the air needs to ...

The Spokane International Airport hit a low temperature of zero early Monday ... and any gaps in doors are covered to keep the warm air in and save on your energy bill. Cold, dry air dominates ...

The advisories impact large areas of Idaho, Oregon, Montana and Washington, lasting through the end of January.

Recently, air quality in large parts of Washington State has deteriorated and some people in sensitive are being urged to ...