Ross D. Franklin, AP
The late afternoon temperature hits 115-degrees in downtown Phoenix, Monday, June 19, 2017. Airlines canceled flights in Phoenix and doctors urged people to be careful around concrete, playground equipment and vehicle interiors Monday as a punishing heat wave threatens to bring temperatures approaching 120 degrees to parts of the Southwestern U.S. (AP Photo/Ross D. Franklin)

More than 40 flights out of Phoenix aren’t going anywhere.

A record-smashing heat wave has arrived in the southwestern United States, including states like California, Arizona, Nevada and Utah.

Temperatures will exceed 110 degrees every day for the next week in many spots in these states. In places like Tucson and Phoenix, temperatures could reach 120 degrees on Tuesday and Wednesday.

Because of those high temperatures, American Airlines canceled dozens of flights scheduled to leave Sky Harbor airport during the hottest hours of the day, according to BBC.

Flights on the Bombardier CRJ airlines, which have a max operating temperature of 118 degrees, were left stranded in Phoenix.

Will this affect Utah? Salt Lake City International Airport spokesperson Nancy Volmer said the heat hasn't affected any flights to and from the Beehive State.

"We're not seeing an impact on our operations," she said.

Planes can’t fly during hot weather because of thinner air. In most cases, thin air affects how high planes can fly, requiring more thrust from the plane’s engines, BBC reported.

Volmer said people typically see cancellations among regional flights.

"The theme over the next week will be the intense and dangerous heat wave that will impact the entire region," the National Weather Service's Phoenix office told Mashable over the weekend. "Monday through Thursday will be the days that we likely tie or break records."

The Beehive State will also see record heat, bringing some of the warmest temperatures in recent years, according to the weather service.

On Tuesday, temperatures are expected to reach 101 degrees in Salt Lake City (which would be a record). Normal temperatures at this time hover around 85 degrees.

"It's a little bit early to get this kind of heat,” KSL meteorologist Kevin Eubank said. "The good news is this isn't a prolonged heat wave."

The heat is on this week, with many locations across Utah expected to tie or break temperature records by Tuesday.

Posted by US National Weather Service Salt Lake City Utah on Sunday, June 18, 2017

The weather service recommends Utahns drink plenty of water, dress in loose-fitting clothing and always be prepared to check on friends and family.

The weather service believes that those in St. George will be at a “very high risk” for long durations of heat with little to no relief. Those in the center and northern part of the state will see “low” to “moderate” risk.

Excessive heat is still expected for much of next week, especially Monday through Thursday and potentially into Friday...

Posted by US National Weather Service Salt Lake City Utah on Saturday, June 17, 2017

Utah broke temperature records last summer, according to the Associated Press. Last year's heat spell, from June to July, saw an average temperature of 80.3 in Salt Lake City, was the hottest on record.

The previous record was set in June and July of 2013 with a 79.8 average temperature, according to the Associated Press.

Spokesperson Nancy Volmer said the heat won't affect any flights to and from the Salt Lake International Airport yet.

"We're not seeing an impact on our operations," she said.