Thursday, July 23 in Las Vegas started hot and is only headed one way: hotter. Clear skies and early morning temperatures already in the upper 80s to near 90°F are setting the stage for a fast climb into the low 110s this afternoon. Forecasters say the dangerous heat will hang around through the weekend, with very little overnight cooling. Under this kind of heat, even ordinary midday errands or outdoor jobs can quickly turn risky for heat-related illness.
Extreme Heat Warning
An Extreme Heat Warning is in effect from 10 a.m. Thursday, July 23 through 8 p.m. Monday, July 27 for the Las Vegas Valley and the Greater Mojave Desert. The National Weather Service expects afternoon highs in desert valleys generally between 108 and 114°F, with some spots running even hotter. Heat-index values are forecast to reach well into the 100s, while overnight lows are projected to remain in the 80 to 95°F range. For full details and the latest updates, see NWS Las Vegas.
What To Expect
Forecast highs are near 110°F on Thursday, around 111°F on Friday with a slight chance of an isolated afternoon thunderstorm, and up to about 113°F over the weekend. Early next week is expected to stay hot, with highs around 109 to 110°F. Winds should stay generally light across the valley. Monsoonal moisture could fire up isolated storms over higher terrain, but the main story remains the prolonged, dangerous heat. With nights staying so warm, many neighborhoods will see very little relief after sunset for the entire duration of the warning.
Where To Cool Off
To help people escape the heat, Clark County has opened daytime cooling stations across the valley through July 24, and Las Vegas-Clark County Library District branches are serving as cooling sites through July 26. The Courtyard Homeless Resource Center at 314 Foremaster Lane is operating around the clock for anyone who needs a cool, safe place to be. Check the county’s list for specific locations and hours before heading out, since each site operates on its own schedule. Full location details are available from Clark County.
Who Should Take Extra Care
Older adults, infants, people with chronic health conditions, anyone without air conditioning, and outdoor workers are especially vulnerable in this kind of heat. Health officials recommend drinking water frequently, avoiding strenuous activity during the hottest part of the day, and checking in on neighbors who might be struggling. Never leave children or pets in parked vehicles, even for a short time. If someone shows signs of heat stroke such as confusion, fainting, or a very high body temperature, call 911 immediately. Employers with outdoor crews should build in frequent rest breaks and provide shaded or air-conditioned areas for recovery.
