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MOST ACCURATE FORECAST: Phoenix hits sub-100° day, temperatures set to rise with storm chance in Eastern AZ.

This time last weekend, we were well above 110 degrees, but today, we have yet to get over 100 degrees at Sky Harbor. This marks our "coolest" day since June 4th. A stronger system that has moved in from the Pacific Northwest pulled temperatures down, but we do expect them to level back out to near normal for the first half of the upcoming week.

Triple-digits return to Valley this week

By: Justin Hobbs

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and last updated

PHOENIX — This time last weekend, we were well above 110 degrees, but today, we have yet to get over 100 degrees at Sky Harbor. This marks our "coolest" day since June 4th.

A stronger system that has moved in from the Pacific Northwest pulled temperatures down, but we do expect them to level back out to near normal for the first half of the upcoming week.

With that storm system, we have also been dealing with strong wind gust which continue this evening across Navajo Nation through the Four Corners.

Red Flag Warnings remain in place for northeast Arizona through 8 p.m. Sunday

While temperatures have pulled back, we will still have a minor risk for heat-related illnesses and it will increase to moderate after the midweek.

Stay hydrated, avoid outdoor activity between 10 a.m. and 6 p.m., and wear light-colored, breathable clothing. If you must be outside, take frequent breaks in the shade or indoors, and don’t forget to reapply sunscreen.

Never leave children or pets in the car, and be sure your pets have a cool, comfortable place to stay during the heat of the day.

Monsoon season officially began on June 15, but dry southwest winds have kept moisture away so far. That will begin to change early this week, with a chance for isolated storms in southeast Arizona early next week.

While chances in the Valley are not on the board for now, we will be keeping a close eye on and westerly trends in the model runs which would increase our chances. For now that chance looked to be in eastern and southeastern Arizona through the midweek. We'll be watching closely and will keep you updated.