PHOENIX — High pressure is building in and heating things up as we head into the weekend.
Valley temperatures will climb into the mid 90s both Saturday and Sunday.
Air quality is also getting worse. Sunshine and stagnant air will lead to a build-up of ozone pollution again on Saturday afternoon.
Another Ozone High Pollution Advisory is in effect Saturday for the Phoenix metro area. Limit your time outside in the afternoon if you have a respiratory condition, like asthma or COPD, or you may have difficulty breathing.
Air quality will start to improve on Sunday as breezes pick up. That will prevent ozone from building up as much.
Breezes will continue into early next week as the next storm system we're tracking moves in from the northwest.
That storm could bring a few showers to northern Arizona late Sunday, Monday and Tuesday. It will also bring in some slightly cooler air.
Highs will drop into the upper 80s by Tuesday before warming back into the mid 90s by Thursday.
Although our Valley forecast will stay dry, Flood Warnings remain in effect for the Salt and Gila rivers through Tuesday (April 25th) due to recent water releases from our reservoirs. Do not attempt to cross any flowing water in any of these areas.
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2023 Rainfall totals:
Sky Harbor Official Rainfall: 2.88" (+0.11" from average)
Valley Average (Phoenix Rainfall Index): 3.33"
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2022 Rainfall totals:
Sky Harbor Official Rainfall: 5.78" (-1.44" from average)
Valley Average (Phoenix Rainfall Index): 7.02"
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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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