Las Vegas is starting Thursday under clear skies and temperatures near 88 degrees, but the brief morning calm will disappear fast. The valley is headed for a high near 109, with dangerously hot conditions continuing before a slow cooldown arrives this weekend.
Extreme Heat Warning Runs Through Friday
An Extreme Heat Warning remains in effect for the Las Vegas Valley through 8 p.m. Friday, with overnight lows expected to stay in the upper 80s to around 90. The National Weather Service says heat-related illness becomes significantly more likely during the warning, especially for people working or exercising outdoors.
Thursday will be mostly sunny, while south to southeast winds increase through the afternoon and could gust up to 22 mph. Friday should reach about 108 degrees, with south winds gusting as high as 25 mph.
Storm Risk Adds A Wild Card
There is a small chance of isolated showers and thunderstorms Thursday afternoon through Saturday, with the best odds near higher terrain. Even a passing storm could bring a brief heavy downpour, lightning, sudden erratic wind gusts and localized flooding, despite the broader forecast staying mostly hot and dry.
The latest outlook is a substantive shift from Wednesday's forecast, when Hoodline reported another day near 111 degrees ahead. The heat warning is still in place, but the extended forecast now points toward a noticeable break from triple-digit extremes beginning this weekend.
Heat Eases But Doesn't Disappear
Saturday should be sunny with a high near 105, followed by 101 Sunday, 98 Monday and 96 Tuesday. Overnight lows gradually improve as well, dropping to about 84 Saturday night, 80 Sunday night and the upper 70s early next week.
Residents should drink plenty of fluids, stay in air conditioning when possible and limit strenuous activity to the early morning or evening. Children and pets should never be left in unattended vehicles, and anyone showing signs of heat stroke should be moved to a cool place while 911 is called.
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