Extreme Heat Warning for Lake Havasu, Las Vegas, and Death Valley Through Thursday Evening
The National Weather Service has issued an Extreme Heat Warning for Thursday, with temperatures up to 116 degrees in some areas.
3 reports on this incident · first at Sep 8, 2026, 3:17 a.m. ET
Hazard products are revised and cancelled as conditions change. Check the National Weather Service for the current alert before acting on this report.
We last searched for new coverage of this at Sep 8, 2026, 3:38 a.m. ET — checked 3h ago.
Earlier reports
Sep 8, 2026, 3:23 a.m. ET
National Weather Service Extends Extreme Heat Warning for Lake Havasu, Fort Mohave, Lake Mead AZ Side Through Late Thursday Night
The National Weather Service in Las Vegas warns that heat-related illnesses will increase significantly during the extreme heat expected Thursday, September 10, 2026, from 10 AM to 8 PM PDT/MST. The warning covers portions of northwest Arizona, southeast California, and southern Nevada, including Lake Havasu and Fort Mohave, Lake Mead AZ side, Lake Mohave AZ side, Northwest Deserts, Death Valley National Park, Cadiz Basin, San Bernardino County, Upper Colorado River Valley, Northeast Clark County, Western Clark and Southern Nye County, Las Vegas Valley, Lake Mead NV side, and Lake Mohave NV side.
High temperatures are forecast to reach 112 to 116 degrees in Death Valley and the Colorado River Valley, and 105 to 110 degrees in the Las Vegas Valley, Moapa Valley, and Pahrump Valley. The warning was issued at 12:09 AM PDT on September 8 and remains in effect until 8 PM PDT/MST Thursday.
The Weather Service advises drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. It warns that car interiors will reach lethal temperatures in minutes and urges people not to leave young children or pets in unattended vehicles. Anyone overcome by heat should be moved to a cool, shaded location; heat stroke is an emergency, and 9 1 1 should be called.
Sep 8, 2026, 3:17 a.m. ETFirst report
Extreme Heat Warning Issued for Lake Havasu, Fort Mohave, and Lake Mead AZ Side Thursday
The National Weather Service in Las Vegas has issued an Extreme Heat Warning for Thursday, September 10, 2026, from 10 AM to 8 PM PDT/MST. The warning covers portions of northwest Arizona, southeast California, and southern Nevada, including Lake Havasu and Fort Mohave, Lake Mead AZ side, Lake Mohave AZ side, Northwest Deserts, Death Valley National Park, Cadiz Basin, San Bernardino County, Upper Colorado River Valley, Northeast Clark County, Western Clark and Southern Nye County, Las Vegas Valley, Lake Mead NV side, and Lake Mohave NV side.
High temperatures are expected to reach 112 to 116 degrees in Death Valley and the Colorado River Valley, and 105 to 110 degrees in the Las Vegas Valley, Moapa Valley, and Pahrump Valley. The warning affects 12 zones.
The National Weather Service advises drinking plenty of fluids, staying in an air-conditioned room, and staying out of the sun. They warn that car interiors will reach lethal temperatures in minutes and urge people not to leave children or pets in unattended vehicles. Anyone overcome by heat should be moved to a cool, shaded location, and heat stroke is an emergency—call 9 1 1.
The warning expires at 8 PM PDT/MST Thursday.
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- Version 18 Sept 2026, 07:23current
First published.
- Version 18 Sept 2026, 07:17current
First published.
- Version 18 Sept 2026, 07:53current
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