Firefighters in Arizona were tackling two out-of-control wildfires in extreme heat on Tuesday — including one at the Grand Canyon National Park's North Rim that's forced evacuations, road closures and razed a historic lodge and other structures.

The Dragon Bravo Fire has destroyed dozens of structures and a water treatment facility, and the White Sage Fire, located in Kaibab National Forest, has forced hundreds to evacuate.

The National Park Service is defending its handling of a lightning-sparked wildfire that destroyed the nearly century-old Grand Canyon Lodge and dozens of historic cabins, saying containment lines had been built around the blaze and crews were prepared to conduct defensive firing operations.

The heat advisory came into effect just before the opening of Capitol Lakefair today at Heritage Park in Olympia. However, there’s still hope for fair-goers looking for more moderate summer weather. The NWS still forecasts a high of about 88 degrees Thursday and high temperatures are expected to be in the 70s Friday and this weekend.

U.S. Forest Service officials say they're seeking information that can help them identify an all-terrain vehicle driver seen in the Monroe Mountain area when a wildfire broke out.

Prepare for poor air quality from Canadian wildfire smoke and rising temperatures today, with rain and thunderstorms expected to return midweek.

A rare fire rainbow appeared after a muggy day along the NC coast Tuesday, according to the National Weather Service.

Severe thunderstorms are forecast Wednesday afternoon across Colorado’s Eastern Plains and I-25 corridor, including Denver, according to the National Weather Service.

The extended forecast suggests unsettled weather midweek, with rain probabilities ranging from 30% to 60%. There is some uncertainty about the exact timing and placement of the rain, but meteorologists anticipate widespread cloud cover and precipitation potential Wednesday through Thursday.

Canadian wildfire smoke remains in Michigan. On July 16, officials issued an air quality advisory for western counties.

Bellingham and Whatcom County residents could be seeing the first wildfire smoke of summer Monday night as most of Washington bakes in an extended heat wave. A heat advisory in in effect through Wednesday night for Western Washington, according to the National Weather Service in Seattle.