PHOENIX — Our latest storm system is on the way out and high pressure is building in.
That will send temperatures into the mid 90s on Thursday afternooon, before we soar back into the triple digits starting Friday.
With light winds and sunny skies in the forecast, ozone pollution will increase in the Valley.
Thursday we are under an Ozone High Pollution Advisory and there's an Ozone High Pollution Watch that could be upgraded to an advisory for Friday, too.
Breathing in ozone pollution can lead to health impacts like chest pain, coughing, throat irritation, congestion and difficulty breathing. Kids, older adults and anyone with any kind of respiratory condition like asthma, bronchitis or COPD can be especially susceptible to the impacts of ozone pollution. So, limit your time outside in the afternoon when ozone pollution is peaking.
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.
Breezes will pick up over the weekend, helping to mix the air, so pollution should be lower.
But, the weekend is when the heat will peak. Valley highs will approach 104 or 105 degrees, putting us nearly 15 degrees above normal!
These hot temperatures will bring a moderate to major risk of heat-related illnesses, so make sure you are staying hydrated and limiting your time outside during the heat of the day.
Also, remember to bring your pets inside and never leave kids or pets in your vehicle.
Mother's Day will be the hottest day of the week with a high near 105 degrees in Phoenix.
Then, temperatures are expected to drop as another storm system passes to our north.
Valley highs will fall into the upper 90s Monday, low 90s Tuesday and upper 80s on Wednesday as our forecast stays sunny and dry next week.
2025 Sky Harbor Official Rainfall to date: 1.02" (-1.79" from average)
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2024 Sky Harbor Official Rainfall to date: 4.54" (-2.68" from average)
Monsoon 2024 Sky Harbor Official Rainfall: 0.74" (-1.69" from average)
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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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