Get ready for extreme heat returning (again) to Las Vegas Valley
The Las Vegas Valley has experienced a roller‑coaster of weather over the past month. Initially, the area faced two utmost vigor warnings. That was followed by a surge of monsoonal moisture and cooler‑than‑normal temperatures. Now, the pattern shifts back to extreme heat, as many anticipated.
The National Weather Service has issued an utmost vigor informing for Southern Nevada, beginning at 10 a.m. today and continuing until 8 p.m. on Friday. Forecasters warn of “dangerously blistery conditions,” with high temperatures expected to range from 107 to 110 degrees across much of the Mojave Desert. Death Valley could climb above 115 degrees.
Harry Reid International Airport recorded a temperature of 108 degrees on Monday, according to Morgan Stessman, a meteorologist with the National Weather Service office in Las Vegas. Stessman noted that the valley is not anticipated to break any daytime vigor records this week; the typical high for mid‑August is 103 degrees. She added that a “broad country of high pressure” has settled over the Southwest, clearing the skies and driving temperatures upward, a trend that will likely strengthen through the week.
This week’s utmost vigor informing marks the third such alert in the past month. The summer’s first utmost vigor warning ran from July 23 through July 27. The second commenced on July 30, was extended several times, and finally expired on August 9.
In response, Clark County has activated cooling stations at community centers, libraries, and other facilities throughout the valley, operational through Friday. Hours vary by site, with locations in Las Vegas, North Las Vegas, and Henderson. The stations are open to anyone seeking relief from the heat, as stated by county officials. Further details can be found on the Southern Nevada Homelessness Continuum of Care website at helphopehome.org/get-help/.
Additional climate statistics for the period:
- Harry Reid International Airport has measured 0.11 inches of rain this month, its wettest span since February (0.35 inches). The August average is 0.32 inches. To date in 2026, the airport has logged 0.62 inches of precipitation, compared with the mid‑August average of 2.64 inches. In 2025, the airport had recorded 2.05 inches by the same point.
- The valley recorded its hottest day of the year on August 1, when the airport hit 115 degrees—just one degree shy of the all‑time high set in 1979 and again in 1938.
- July ranked as the third warmest on record, with an average temperature of 96.6 degrees.
- Las Vegas logged its first 110‑degree day of the year on July 8.
- The airport observed 12 days of 110 degrees or higher in July, falling short of the record; the yearly average is 10 such days. In 2024, Reid tallied 36 days reaching at least 110 degrees.
- No measurable rain fell in July, although a trace was noted on July 19.
- On June 23, the airport recorded 0.02 inches of rain, ending a 124‑day dry streak; that was the month’s sole precipitation.