Denver’s air quality today is expected to range from good to moderate, with no advisories or indoor burning restrictions in effect for the metropolitan region. Breezy winds combined with strong atmospheric mixing are allowing pollutants such as ozone, carbon monoxide, nitrogen dioxide, and fine particulate matter to remain at levels classified as either good or moderate for Saturday’s forecast period.

As of Friday afternoon, Denver’s highest measured Air Quality Index was 51 for fine particulates smaller than 2.5 micrometers. This falls into the moderate category, which means most people can go about their usual activities, but individuals who are unusually sensitive to particle pollution, such as those with heart or lung disease or older adults, may experience minor respiratory symptoms or aggravation of their conditions. In those cases, reducing heavy or prolonged exertion outdoors can be advisable.

Ozone concentrations are forecasted to be in the good range for both Friday and Saturday. Carbon monoxide and nitrogen dioxide are also expected to remain at good levels. Visibility is anticipated to be good to moderate for most of the day. These conditions are typical for the Front Range during this part of the year, aided by atmospheric mixing which disperses pollutants and limits buildup.

Historically in 2025, Denver has experienced generally healthy air: 90 percent of the days so far this year have met the World Health Organization’s safe air quality limits, indicating a very low risk for health problems from pollution. However, Denver remains on watch for ozone pollution, as periods of heat and wildfire smoke can trigger worse conditions—this summer, for instance, air quality advisories and action days were issued in response to high ozone and particulate levels.

For today, most residents and visitors in Denver should find outdoor conditions comfortable, but those with heightened sensitivity to air pollution may wish to take basic precautions, such as limiting strenuous outdoor activity during afternoon highs in particulate concentration.

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This content was created in partnership and with the help of Artificial Intelligence AI