AQ Index Today provides national and local air quality forecasts for more than 30,000 cities across the United States. We provide real-time forecast data for several air pollutants including Ozone, PM2.5, PM10, CO, NO2 and SO2. Our forecasts are built using data provided by the EPA and more than 120 local, state, tribal, provincial, and federal government agencies.
The purpose of the AQI is to inform people about their air quality so they can take steps to protect their health. This is especially important whenever the AQI exceeds 100.
It’s easy to find your local AQ index forecast. Enter your city and state above and hit the 'Find Forecast' button.
Below is a clickable map of the United States. You can use it to find your local AQ index forecast. Simply click on a state, and you’ll be taken to the state map where you can select your county and then a city. Additionally, the markers on the map identify large, populated cities. If you hover over a marker it will display the city name along with the current Air Quality index. The color of the marker also references the current AQ risk level.
| 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 you will find a list of every state in the US. Click on a state to be taken to a map where you can select your county and then your city. For a faster experience use our search function at the top and bottom of this web page. It allows you to search using your city and state.
It's easy to find your local AQ index forecast. Enter your city and state above and hit the 'Find Forecast' button.