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Wildfires across Canada and Minnesota are burning thousands of acres, sending smoke that lowers air quality in the Northeast ...

Forecasters have predicted that the heat and smoke will subside in some areas starting on Friday—but the air quality could worsen yet again this weekend in others.

This story has been updated with the latest air quality forecast. Officials extended the statewide air quality alert in ...

Smoke from Canadian wildfires is triggering air quality alerts across 18 states, with hazardous conditions in parts of ...

Lollapalooza got its start in Phoenix. Here's a look at that game-changing day, from Jane's Addiction fighting to Nine Inch Nails storming off stage.

Dense smoke plumes continue to stream southward on a northwest flow aloft, creating widespread visibility restrictions and unhealthy air quality levels across the region. An approaching system diving ...