MOST ACCURATE FORECAST: Tracking sizzling heat and a return of monsoon storm chances

Posted at 6:24 AM, Jul 08, 2022

PHOENIX — Get ready for a return of sizzling hot temperatures!

Temperatures are soaring to 110 or higher through the weekend as high pressure builds in.

Valley highs will top out between 112 and 113 Saturday and Sunday. Then we could get hotter on Monday, with a forecast high of 114 that day. An Excessive Heat Warning is now in effect from 10 a.m. to 8 p.m. Monday for Phoenix and all of southwest Arizona.

Monday will also be an ABC15 Weather Action Day as we remind you to take action to keep yourself safe as this heat can be dangerous or even deadly. Take precautions by limiting your time outdoors and staying hydrated.

Dangerously hot conditions are setting in for other parts of the state, too. An Excessive Heat Warning is now in effect today through Sunday for the lower elevations of the Grand Canyon as temperatures soar well into the triple-digits there.

Morning lows will get warmer too, only cooling into the mid to upper 80s to near 90 degrees in the Valley through the weekend. So we won't get much relief from the heat overnight.

Monsoon storm chances will begin to expand in eastern Arizona today and this weekend.

It's likely we'll see more storms along the Mogollon Rim by Saturday, too.

While the Valley storm threat looks low, we could see a stray storm or areas of blowing dust Saturday evening, so stay weather-aware.

Valley monsoon storm chances increase by the middle of next week.

We're also monitoring air quality. An Ozone High Pollution Advisory is now in effect on Saturday as ozone pollution could reach unhealthy levels for people who are sensitive. You may want to limit your time outdoors, otherwise you could have difficulty breathing.


2022 Rainfall totals:

Sky Harbor Official Rainfall: 0.87" (-2.19" from average)

Valley Average (Phoenix Rainfall Index): 0.89"

Daily rainfall reports from all across the Valley can be found here.


Average Monsoon Rainfall in Phoenix (1981-2010): 2.71" of rain

NEW Average Monsoon Rainfall in Phoenix (1991-2020): 2.43" of rain

Average Yearly Rainfall in Phoenix (1981-2010): 8:03" of rain

NEW Average Yearly Rainfall in Phoenix (1991-2020): 7.22" of rain

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