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MOST ACCURATE FORECAST: Slight cool-down across Arizona heading into the weekend

Steady warmth and sunshine on tap
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PHOENIX — We're cranking up the heat for another day before temperatures slowly cool down, just in time for Halloween!

A weak disturbance moving through the state will drop temperatures a few degrees heading into the weekend.

In fact, some parts of Arizona may drop to the freezing mark for the first time this season.

A Freeze Warning is in place through 9 a.m. for parts of Graham, Greenlee and Cochise counties.

Valley temperatures will drop down into the upper 80s on Friday and Saturday for daytime highs as our forecast stays mostly sunny and dry.

That slight cool-down will put trick-or-treating temperatures in the mid 70s to low 80s on Halloween night in the Valley.

Then, as high pressure intensifies over the Southwest, Phoenix will be back in the 90s early next week.

On average, Phoenix sees its last 90-degree day around October 30th, but we have hit the 90s as late as mid November before back in 2020.

2025 Sky Harbor Official Rainfall to date: 7.49" (+1.60" from average)

Monsoon 2025 Sky Harbor Official Rainfall: 2.76" (+0.33" 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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See the full 7-Day forecast

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