Due to smoke from wildfires, several U.S. cities had an AQI over 100 on Aug. 5, which means the air is unhealthy for sensitive groups of people with respiratory and other health issues.

It's nearing time for a smoke "break." But as the high pressure trapping the smoke moves away, the chance for rain moves in. Air quality is slowly improving, and the smoke's taken an edge off of this ...

The remaining 10 states affected by medium to heavy smoke from the wildfires are Colorado, New York, New Jersey, Connecticut, Pennsylvania, Vermont, Massachusetts, Indiana, New Hampshire, and ...

Smoke from hundreds of wildfires in Canada is lingering over the northern U.S., spreading across to roughly a dozen states from Wisconsin to Maine.

The National Weather Service announced air quality alerts in 10 states Tuesday as smoke from the Canadian wildfires continues ...

The wildfire smoke is expected to continue to decrease across Wisconsin on Wednesday, and further extensions of the advisory ...

According to the Canadian Interagency Forest Fire Centre, 742 wildfires are currently burning in Canada, with 201 of them out ...

An air quality alert was issued by the National Weather Service in State College at 12:45 a.m. on Tuesday, Aug. 5.

Poor air quality remains over central Wisconsin Tuesday and Wednesday as much warmer temps arrive later this week.

An air quality alert was issued by the National Weather Service in Mount Holly at 3:47 a.m. on Tuesday, Aug. 5. This warning ...

An air quality advisory will remain in place for some northern and eastern counties in Wisconsin until noon on Wednesday due ...

The thick plumes of smoke in Canada are being driven southward into the U.S. by northerly winds on the backside of an area of high pressure.