The highest AQ index in Washington (as of 4:00 PDT) is currently the Seattle-Bellevue-Kent Valley area. Particle Pollution (PM2.5) is measuring at 60 (Moderate). This means air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
Over the next few days, the highest Particle Pollution (PM2.5) will be in the Bremerton-Silverdale-Bainbridge Island area. It is forecasted to be Good, meaning air quality is satisfactory, and air pollution poses little or no risk.
For May 4-11 (Mon-Mon): We'll have mostly GOOD to MODERATE air quality this week and weekend. Overnight and in areas with light to stagnate winds are more likely to reach MODERATE. Mon and Tues will be warm and clear. Clouds will move in late Wed with cloudy to partly cloudy skies and mild temperatures through the weekend.
| Range | 0 - 50 | 51 - 100 | 101 - 150 | 151 - 200 | 201 - 300 | 301 - 500 |
| Color | ||||||
| Category | Good | Moderate | Unhealthy for Sensitive Groups | Unhealthy | Very Unhealthy | Hazardous |
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Below is a list of counties in Washington. Click on any county below and you'll get a list of cities where we provide AQ index forecasts.