Air Quality forecasts for fine particles and ozone are available for Boston and other major cities in Massachusetts at the AirNOW website.

Forecast maps showing the predicted Air Quality Index (AQI) throughout New England are created and updated on a daily basis. The maps represent both forecasted ozone and particle pollution levels, with the pollutant with the highest predicted concentration illustrated for each geographic area on the map. These predictions are made by state air quality staff using forecasted meteorological conditions as well as current ambient ozone and particle concentrations gathered from state air monitoring stations. Forecast maps are updated at approximately 4:30 PM. each day.