On June 17, 2026, six new web services were released on the AirNowAPI. These web services are designed to improve data access, offer improved performance, and match behavior seen on AirNow.gov. Additionally, six existing services will be retired on September 30th, 2026.
For a full list of changes, links to web services, and suggested actions, please see the announcement [here]
New AirNow API Web Services
Current Forecasts by Reporting Area
Current Observations by Reporting Area
Current Observations by Latitude/Longitude or Zip Code
Historical Daily Observations by Reporting Area - By State
Daily Observations by Monitoring Site - Bounding Box
Historical Daily Forecasts by Reporting Area
API Web Services/Endpoints Retiring September 30th, 2026
Forecast by Zip Code: /aq/forecast/zipCode/
Forecast by Latitude/Longitude: /aq/forecast/latLong/
Current Observations by Reporting Area (Zip Code): /aq/observation/zipCode/current/
Current Observations by Reporting Area (Lat/Long): /aq/observation/latLong/current/
Historical Observations by Reporting Area (Zip Code): /aq/observation/zipCode/historical/
Historical Observations by Reporting Area (Lat/Long): /aq/observation/latLong/historical/
On June 17, 2026, six new web services were released on the AirNowAPI. These web services are designed to improve data access, offer improved performance, and match behavior seen on AirNow.gov. Additionally, six existing services will be retired on September 30th, 2026.
For a full list of changes, links to web services, and suggested actions, please see the announcement [here]
New AirNow API Web Services
Current Forecasts by Reporting Area
Current Observations by Reporting Area
Current Observations by Latitude/Longitude or Zip Code
Historical Daily Observations by Reporting Area - By State
Daily Observations by Monitoring Site - Bounding Box
Historical Daily Forecasts by Reporting Area
API Web Services/Endpoints Retiring September 30th, 2026
Forecast by Zip Code: /aq/forecast/zipCode/
Forecast by Latitude/Longitude: /aq/forecast/latLong/
Current Observations by Reporting Area (Zip Code): /aq/observation/zipCode/current/
Current Observations by Reporting Area (Lat/Long): /aq/observation/latLong/current/
Historical Observations by Reporting Area (Zip Code): /aq/observation/zipCode/historical/
Historical Observations by Reporting Area (Lat/Long): /aq/observation/latLong/historical/