High pressure and fair weather over the area through the weekend will result in nighttime stable air and light winds which will trap fine particles (PM2.5) in the Valley, increasing PM2.5 to Moderate AQI levels. Breezy next week will help clear the air. -- AQI is EPA's Air Quality Index - information is on EPA AirNow and the DAQ web pages. -- You can follow Clark County air quality conditions and updates on Twitter: @CCAirQuality. See https://airnow.gov/ for more information.