Republican lawmakers are blaming Canada for not preventing and containing wildfires, whose smoke has fouled the air in ...

While the smoke is worst along the Western Slope where the fires are burning, levels are also fluctuating on the Front Range.

While relief from the heat in the form of cool, Pacific breezes are on the way to Western Washington, the near-record hot ...

Researchers found that wildfire smoke can raise ozone to dangerous levels, posing hidden health risks even in remote areas.

A dramatically large and dark column of smoke dominated the sky Tuesday as the Gifford Fire continued to burn in San Luis ...

Several rounds of wildfire smoke have been moving into Denver, Boulder, Fort Collins and communities up and down the I-25 ...

Expect a cooler Wednesday with hazy skies from Canadian wildfire smoke, followed by a warming trend and potential ...

Forecasting wildfire smoke is hard. We review the best tools to help you predict when unhealthful levels of smoke are coming.

West-Northwest Winds will continue to bring Smoke south from Canada into Minnesota Today and at times Air Quality in the Twin ...

Nearly 30 firefighters from across two regions are tackling a woodland blaze that has caused smoke to be seen from Birmingham ...