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MOST ACCURATE FORECAST: Excessive heat, high pollution and monsoon storms this week

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PHOENIX — It's an incredibly hot weekend in the Valley! Unfortunately more extreme heat is on the way this week with more chances of thunderstorms too.

Excessive Heat Warnings are in effect now through Monday night.

Monday is an ABC15 Weather Action Days as a reminder to take action to stay safe in these dangerously hot temperatures.

Forecast highs between 110 to 116 degrees are expected again Monday with temperatures cooling a few degrees for the midweek before heating up again by next weekend.

We won't get much relief overnight either. Early morning lows could set records too, only dropping into the low 90s in Phoenix over the weekend.

With this hotter forecast, the risk for heat-related illnesses like heat exhaustion and heat stroke will increase.

So, plan on limiting your time outside, especially in the afternoon when temperatures are hottest. Stay hydrated with water and electrolyte drinks, and never leave kids or pets alone in your vehicle no matter how quick the errand.

Most of the action for monsoon storms and showers will stay in the higher terrain of northern, eastern and southern Arizona but we can't rule out an isolated thunderstorms or spotty showers moving into the Valley this week.

The main concern for the Valley will be strong gusty winds and blowing dust.

Here in the Valley, air quality is a concern for us too.

Ozone High Pollution Advisory is in effect through Monday and an Ozone High Pollution Watch have been issued for Tuesday.

The pollution watches could be upgraded to advisories as we get closer, so we'll keep you updated.

Ozone pollution will reach unhealthy levels for kids, older adults and anyone with any respiratory issues like asthma or COPD.

Breathing in ozone pollution can lead to health impacts like chest pain, coughing, throat irritation, congestion and difficulty breathing. So, limit your time outside in the afternoon when ozone pollution is peaking. Even healthy adults trying to exercise outside may experience health impacts.

Everyone can help prevent the pollution problem from getting worse by carpooling, taking public transportation or working from home. Also, wait until after dark to fill up your gas-powered vehicles and avoid idling in long drive-thru lines.

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2024 Rainfall totals:

Sky Harbor Official Rainfall: 4.19" (+0.25" 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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