By 5:35 a.m. PDT on Wednesday, July 22, skies were clear over Harry Reid International Airport and the official reading was already near 86°F. Temperatures will rocket up through the morning, with a forecast high close to 107°F this afternoon. That is only the opening act for a multiday, dangerous heat surge expected to arrive Thursday and linger into next week.
What To Expect
An Extreme Heat Warning is scheduled to take effect at 10 a.m. Thursday, July 23 and remain in place through 8 p.m. Monday, July 27. Daytime highs around the Las Vegas Valley are forecast to reach the low 110s with only limited cooling at night, according to NWS Las Vegas. Forecasters say heat index values will make it feel even hotter, and some pockets of the Mojave Desert could see temperatures climb higher still.
Today And The Near Term
For Wednesday, July 22, look for a high near 107°F with light east-southeast winds of about 2 to 7 mph and afternoon readings in the upper 100s. There is a slight chance of isolated afternoon thunderstorms on Friday after 11 a.m., but any storms are expected to be brief and localized. The primary concern remains the stretch of prolonged, extreme heat.
Where To Cool Off
Clark County has activated daytime cooling stations throughout the valley from July 20 to 24. Many libraries, recreation centers and community hubs are open to provide air-conditioned space and water, and the Courtyard Homeless Resource Center is operating 24 hours a day for those in need, according to Clark County. The county is coordinating transportation and shelter options for residents without reliable air conditioning, and officials urge people to check the county list for specific hours and locations before heading out.
Heat Safety Tips
Stay hydrated by drinking plenty of water, avoid strenuous activity during the hottest parts of the day, and check in on older adults and anyone who does not have air conditioning. Never leave children or pets in a parked car under any circumstances. Heat stroke is a medical emergency; call 911 right away if someone becomes confused, faints or is unresponsive.
