Fall might be around the corner, but sweater weather isn't in sight for Phoenix area

The calendar might say fall officially starts next week, but Valley temperatures clearly didn't get that message. 

Saturday's temperatures were expected to hit a high of 104 with a low of 79 and clear skies throughout the day.

That trend was expected to continue throughout the week, with temperatures hovering between 102 and 105 degrees. Last year at the same time, high temperatures were in the upper 90s.

This year's temperatures are above average, but "not wildly out of range" for this time of year, according to Austin Jamison, a meteorologist with the National Weather Service in Phoenix.

A high-pressure system has been hovering over the region, causing the higher temperatures. Jamison added it's "unclear" when the Valley will see cooler temperatures.

The average date of the last 100-degree day is Oct. 3, though the latest occurrence of a 100-degree day was Oct. 27 in 2016, Jamison said.

The last 100-degree day in 2019 was recorded on Sept. 19. 

Though those kinds of temperatures pale in comparison to the hottest days, Jamison said it's still important for Valley residents to take precautions.

"Even though it's not as blisteringly hot as we've had earlier in the summer, it's still enough that can cause problems if people aren't being careful with their outdoor activities," he said.