The highest AQ index in Idaho (as of 21:00 MST) is currently the Idaho City area. Particle Pollution (PM2.5) is measuring at 83 (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 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.
The weather will trend much more unsettled Thursday through the weekend. Temperatures look to be cold enough tonight into Friday to support a lowland wintry mix. By Friday, temperatures will modify and warm above normal with unsettled weather continuing through the weekend and into next week. Air Quality is expected to be mostly in the MODERATE to GOOD categories this week.
| 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 15 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.