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MOST ACCURATE FORECAST: Sizzling hot week ahead as daily monsoon storm chances continue

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PHOENIX — The chance for monsoon storms continues across Arizona this week.

The greatest potential will be across the higher terrain in northern, eastern and southeastern Arizona, but there's also a chance for more storms in the Valley too.

Any storms that develop could produce gusty winds, blowing dust, dangerous lightning, small hail, downpours and flooding, especially along and near wildfire burn scars. So, stay weather-aware and never attempt to drive through flooded washes or roadways.

It's staying hot all week long, too.

Valley highs will continue to top out above average each day this week, with highs at or just above 110 degrees each afternoon.

Overnight lows will only cool into the 80s to low 90s each day, too.

Lingering monsoon moisture will also make it feel hotter, as the heat index or "feels like" temperature runs a degree or so higher than the air temperature.

Air quality will also be a concern on Tuesday, prompting the Arizona Department of Environmental Quality to issue an Ozone High Pollution Advisory for the Valley.

People most vulnerable to the impacts of air pollution include children, older adults, adults exercising outdoors, people with heart or lung disease, and those suffering from asthma and bronchitis.

Exposure to ozone can increase the number and severity of asthma attacks, cause or aggravate bronchitis or other lung disease, and reduce the body's ability to fight infection.

Consider reducing ozone by driving as little as possible, carpool, use public transportation or working from home. Also, re-fuel your vehicle in the evening and avoid waiting in long drive-thru lines, if possible.

Excessive Heat Warnings are in effect for all of Mohave County, including for spots like Bullhead City and Lake Havasu through Wednesday night.

Excessive Heat Warnings are also in effect for areas along the Lower Colorado River Valley through Friday night, including for areas like Yuma. Heat index values in those locations could top out between 115 and 120 degrees this week!

As temperatures stay hot across the Valley and state, the risk for heat-related illnesses like heat exhaustion and heat stroke continues.

Limit your time outside, especially in the afternoon, during the peak heat of the day. Stay hydrated with water and electrolyte drinks, and never leave kids or pets alone in your vehicle no matter how quick the errand.

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2024 Rainfall totals:

Sky Harbor Official Rainfall: 4.19" (+0.67" from average)

Valley Average (Phoenix Rainfall Index): 3.90"

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2023 Rainfall totals:

Sky Harbor Official Rainfall: 4.21" (-3.01" from average)

Valley Average (Phoenix Rainfall Index): 5.47"

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

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PHOENIX IS GETTING DRIER - LOWER RAINFALL AVERAGES NOW

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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