Western U.S. Braces for First Heat Wave of Season, Increasing Wildfire Risk

A heatwave is expected to hit the western United States, with temperatures reaching near or above record highs from Thursday to Saturday. The heat is expected to be most intense in California, Nevada, and western Utah, with highs forecast to exceed 107 degrees in Redding, California, and 107 degrees in Las Vegas, Nevada. The heat, combined with low humidity and dry vegetation, increases the risk of wildfires. Overall, summer temperatures are expected to be 2-3 degrees higher than historical averages across the region.

A severe heatwave is set to engulf the western United States from Thursday to Saturday, with temperatures expected to reach or exceed record highs. The heatwave is anticipated to be most intense in California, Nevada, and western Utah, according to meteorologists at AccuWeather.

In California, the city of Redding is forecast to experience a high of 107 degrees on Friday, which would break the 2021 record of 104 degrees. Sacramento is also expected to see a high of 103 degrees, tying the 1910 record. In Nevada, Las Vegas is set to reach a high of 107 degrees on Friday, surpassing the 2002 record of 106 degrees. Meanwhile, Salt Lake City, Utah, is expected to hit a high of 96 degrees on Sunday, breaking the 2020 record of 94 degrees.

The heatwave is expected to be accompanied by low humidity and dry vegetation, which increases the risk of wildfires in the region. AccuWeather forecasts that overall summer temperatures will be 2 to 3 degrees higher than historical averages across much of interior California and the western U.S.

References:
[1] https://www.claimsjournal.com/news/national/2025/05/27/330829.htm
[2] https://www.insurancejournal.com/news/west/2025/05/27/825245.htm