Late Sunday afternoon, it was only one degree cooler at the Powell Municipal Airport than at the Las Vegas airport. 

It was a record heat for the city, according to the National Weather Service. 

Powell hit 106 degrees at 3:55 p.m. Sunday, two degrees hotter than the previous all time high (at least since recording began in 1981) of 104, set on June 10, 1988, and July 16, 2002. 

And Powell wasn’t alone, as the whole region was awash over the weekend in blazing heat. 

It was 110 in Worland, 109 in Cowley and 106 in Cody, which was also a new all time record at least back to 1915, to break the previous record of 105 in 1925 and 1951, according to the NWS. 

Even Lake Yellowstone set a new record of 87 degrees, breaking the previous high of 86. The park has installed restrictions on fishing certain rivers during the heat of the day to avoid stressing the fish.  

The high heat isn’t going away anytime soon, said NWS Riverton Meteorologist Taylor Wittmann. 

“Yesterday looked to be the peak heat,” he said, but added that it may be hotter Tuesday than it was Monday (high of 98 degrees). 

“Maybe next weekend we start to see a little relief, but I think we're stuck in this hot pattern the rest of the month,” he said, noting the long range prediction shows warmer than average temperatures throughout the rest of July. 

The problem, he said, is this warm weather system is just sticking around and not really moving. 

And due to the extreme heat and occasional strong winds, the Park County Sheriff's Office is asking the public to be extremely cautious with any fires. 

“Stage 1 fire restrictions are currently in effect but we are asking anyone considering an agricultural burn to please not do it as triple digit temperatures combined with 20-30 mile per hour wind gusts will make any fire extremely dangerous and will significantly increase the danger for our responding fire fighters,” the sheriff’s office said in a Friday post. “Please stay safe and don't forget to stay hydrated if you are going to be recreating or working outdoors. In temps like these your chance of dehydration will be significantly higher than normal.”