Extreme Heat Warning

Locations Affected

Las Vegas, NV ∙ Henderson, NV ∙ North Las Vegas, NV ∙ Lake Havasu City, AZ ∙ Glendale, NV ∙ Westend, CA ∙ Clark Mountain, CA ∙ Detrital Valley, AZ ∙ Pine Peak, AZ ∙ Dry Lake, NV

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Las Vegas NV 117 PM PDT Thu Aug 27 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT /8 PM MST/ FRIDAY... * WHAT...Dangerously hot conditions expected through the work week, with temperatures up to 115 to 118 across Death Valley and the Colorado River Valley; up to 108 to 112 across Moapa Valley, the Las Vegas Valley, the Pahrump Valley, and the Morongo Valley; up to 90 to 95 in the Hualapai Mountains. Overnight lows will be in the upper-80s to low-90s for desert valleys. * WHERE...Portions of northwest Arizona, southeast California, and southern Nevada. * WHEN...Until 8 PM PDT /8 PM MST/ Friday. * IMPACTS...Heat-related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose-fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Monitor the latest forecasts and warnings for updates.

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