Get ready for extreme heat returning (again) to Las Vegas Valley

The Las Vegas Valley has been riding a weather roller coaster in the past month.

At first, it was two extreme heat warnings. Then came a round of monsoonal moisture and cooler-than-normal temperatures.

Now guess who’s back? If you guessed “extreme heat,” you guessed correctly.

The National Weather Service has issued an extreme heat warning for Southern Nevada, starting at 10 a.m. today and lasting through 8 p.m. Friday.

Expect “dangerously hot conditions” with high temperatures between 107 and 110 degrees for much of the Mojave Desert region. Death Valley could reach over 115 degrees.

Harry Reid International Airport reached 108 degrees Monday, said Morgan Stessman, a meteorologist at the National Weather Service office in Las Vegas. The valley is not expected to break any daytime heat records this week. The normal high for mid-August is 103.

Stessman said a “broad area of high pressure” has settled across the Southwest, causing the skies to clear out and temperatures to rise. It will continue to strengthen this week, she said.

This week’s extreme heat warning is the third in the past month. The summer’s first extreme heat warning lasted from July 23 through July 27. The second started July 30 and was extended several times, finally expiring Aug. 9.

Cooling stations

Clark County has activated cooling stations at community centers, libraries and other buildings across the valley through Friday.

The cooling stations’ hours vary depending on the location. The stations include several locations in Las Vegas, North Las Vegas, and Henderson.

The stations are open to anyone in need of respite from the heat, the county said. Additional information can be found at the Southern Nevada Homelessness Continuum of Care’s website at helphopehome.org/get-help/.

Summer weather facts

— The airport has recorded 0.11 inches of rain this month, its wettest month since February (0.35). The August average is 0.32. Reid has registered 0.62 inches of precipitation so far in 2026. The average through mid-August is 2.64. In 2025, the airport had seen 2.05 inches through mid-August.

— The valley saw its hottest day of the year Aug. 1, with the airport recording 115 degrees, one degree short of a record high (set in 1979 and 1938).

— This July was the third warmest on record, with an average temperature of 96.6.

— Las Vegas recorded its first 110-degree day of the year on July 8.

— The airport registered 12 days of 110 degrees or more in July, which was not a record. The annual normal is 10 days. In 2024, Reid saw a record 36 days of high temperatures of least 110.

— Reid saw no measurable rain in July, although it recorded a trace July 19.

— On June 23, Reid recorded 0.02 inches of rain, breaking a rainless streak of 124 days. It was the only rainfall of the month.