The highest AQ index in Idaho (as of 18:00 MDT) is currently the Boise area. Ozone (OZONE) is measuring at 48 (Good). This means air quality is satisfactory, and air pollution poses little or no risk.
Over the next few days, the highest Particle Pollution (PM2.5) will be in the St. Maries area. It is forecasted to be Moderate, meaning air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
Warmer and drier conditions return Friday through the weekend. Next round of showers is expected for the middle of next week. Air Quality is expected to be mostly in the GOOD to MODERATE categories in most places this 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 |
Last Updated 14 minutes ago
Below is a list of counties in Idaho. Click on any county below and you'll get a list of cities where we provide AQ index forecasts.