The hazy air hovering over US cities, including Chicago and New York, this summer is reminding Americans of just how ...

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

State and federal agencies recommend several steps to keep indoor air cleaner during wildfire smoke events: Upgrade your air ...

Bay Area residents may see hazy skies and smell smoke, but the air district does not expect pollutant levels to exceed ...

The Latest from Storm Team 5… A cold front moving from west to east across the state has flared up some thunderstorm activity ...

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

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

Wildfire smoke doesn’t just cloud the horizon, it can chemically change the air at ground level and in layers of the ...

Today brings another sunny day, but areas of smoke remain in southern Minnesota. Temperatures remain warm today in the low ...

Minnesota and Canada share so much: frigid winters, a love for hockey—and more recently, massive plumes of toxic wildfire ...

The skies were mostly clear and blue in the Twin Cities Tuesday, but Dr. Dorothy Curran says we're not in the clear yet when ...

Wildfire smoke is expected to return to Denver this week, impacting indoor and outdoor air quality. Supreme Court makes major ...