It hit 100 degrees for the first time in 2026 in Las Vegas on Friday. It’s only going to get warmer. The heat wave that began Thursday is expected to intensify this weekend, with forecast highs of 100 for Saturday and Sunday and 103 on Monday and Tuesday, which may break daily heat records, said Sam Meltzer of the National Weather Service. Saturday’s record high is 105 (set in 2018) and Sunday’s record high is 102 (set in 1940). On Thursday, Harry Reid International Airport hit 92, about 10 degrees short of the daily record. It was the second time Reid has reached 90 this month (it saw 91 on May 3). The average early May temperature is 85 degrees. Last year, Las Vegas hit 100 for the first time on May 21 . The average date of hitting 100 is May 24. In 2024, the valley hit 100 on May 17. The earliest Las Vegas has hit 100 was May 1, 1947. The latest was June 30, 2023. Reaching the century mark is an unofficial start to the summer heat in the valley.…