The highest AQ index in Washington (as of 9:00 PDT) is currently the Yakima area. Particle Pollution (PM2.5) is measuring at 54 (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 Ozone (OZONE) will be in the Cascade of east King-Pierce counties area. It is forecasted to be Good, meaning air quality is satisfactory, and air pollution poses little or no risk.
For Fri-Mon (Sep 4-7) We'll have mostly GOOD to MODERATE air quality this weekend. Late this afternoon and early evening, we may have some smoke moving into the Cascades and sneaking through the passes. Some areas could reach MODERATE or UNHEALTHY FOR SENSITIVE GROUPS for a few hours. Overnight and into Saturday, winds should shift back to westerly and mix the smoke and push it back east. This pattern could repeat again Saturday evening and Sun. Monday should have good westerly winds and GOOD air quality.
| 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 |
Last Updated 12 minutes ago
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.