KVIG Informative

The National Weather Service issued a new Extreme Heat Warning for Southern Nevada this week, the latest in a summer that has already killed dozens of valley residents.

The National Weather Service Las Vegas office issued an Extreme Heat Warning effective the morning of Aug. 24, running through 8 p.m. on Aug. 28, covering Clark County and the surrounding Mojave Desert region.

The warning describes dangerously hot conditions with highs reaching 110 to 120 degrees across the Mojave Desert, with little to no overnight relief expected. The National Weather Service said the combination poses a major to extreme heat risk for the region.

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Overnight lows are forecast to stay elevated, offering minimal recovery time for anyone without reliable air conditioning. The National Weather Service has repeatedly cited that lack of overnight cooling, rather than daytime highs alone, as a key driver of heat-related illness during Southern Nevada’s warning periods this summer.

This is at least the fourth extended Extreme Heat Warning Southern Nevada has faced since late July, following a stretch that included a 115-degree day in early August, one degree short of the daily record.

Clark County reported at least 46 heat-related deaths so far this year as of earlier this month, with victims ranging in age from 28 to 87, according to county officials. Clark County has kept cooling stations active at community centers, libraries and other public buildings across Las Vegas, Henderson and North Las Vegas throughout the summer.

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The National Weather Service is urging residents to avoid non-essential outdoor activity during peak afternoon hours, stay hydrated, check on elderly neighbors, and never leave children or pets in unattended vehicles, warning that car interiors can reach lethal temperatures within minutes.

This warning runs through the weekend. Nothing in the forecast or in this summer’s pattern suggests it will be the last one Southern Nevada sees before fall — and the region’s heat death count is already climbing toward whatever final tally 2026 ends up leaving behind.