No relief: Extreme heat warning for Phoenix area extended through Aug. 28

With high temperatures remaining in dangerous territory, the ongoing extreme heat warning for the Phoenix area has been extended through Aug. 28.

“We’re looking at a continuation of the very warm temperatures, and for much of next week we’ll actually be flirting with some daily record highs with highs in the metro between 110 and 115 degrees,” Mark O’Malley, a meteorologist with the National Weather Service in Phoenix, told KTAR News 92.3 FM on Friday morning.

O’Malley added that the Valley isn’t expected to see any rain over the next week after monsoon storms hit the area earlier this week.

Extreme Heat Warning has been extended through Friday, August 28th. No prolonged relief from temperatures flirting with daily records, yielding major to extreme HeatRisk through next week. Please take the proper precautions to protect yourself from the heat. #azwx #cawx pic.twitter.com/CFzI3yei4H

— NWS Phoenix (@NWSPhoenix) August 21, 2026

“Some of the areas on the outskirts of town could see a few showers here and there. But that’s going to be more the exception than the rule, and generally chances will be less than 10% or 15%,” he said.

The best chances for record temperatures in Phoenix will be on Saturday and Tuesday, which each have previous high marks of 113 degrees. The normal high for late August is about 105 degrees.

The Valley is on track to be under an extreme heat warning for 21 days in August after an earlier warning ran from July 23 to Aug. 9.

If it is not extended again, the current metro Phoenix warning, which started Monday, will run 12 days and put the 2026 total at 43 days. That’s the third most on record behind 2020 (48 days) and 2024 (45 days).

This year’s total includes the first-ever extreme heat warning in the month of March.

How to stay safe during extreme heat warnings

Extreme heat warnings trigger daytime closures of hiking trails at Camelback Mountain, Piestewa Peak and South Mountain in Phoenix.

The danger is real. The Maricopa County Public Health Department has confirmed 81 heat-related deaths so far this year, more than double the number at this time in 2025.

Health experts urge precautions during times of extreme heat, such as keeping hydrated, wearing light clothing and remaining indoors with air conditioning during the hottest times of the day.

The Maricopa County Heat Relief Network offers free, cool spaces and other resources to people who need relief from the heat from May to September.

Additionally, the Salvation Army opens 10 heat relief stations across the Valley during extreme heat warnings.

KTAR News 92.3 FM’s John Roller contributed to this report.

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