PHOENIX -- The first Freeze Warnings of the season are in effect for northeastern Arizona, while the coolest temperatures seen since spring are on tap for the Valley Saturday morning.
A cold front that swept across the state Thursday ushered in a cooler air mass from the northwest. This prevented the high temperature from surpassing 87 Friday afternoon at Sky Harbor. The seasonal average for this day is 96.
The chill is expected to have a firm grip on the high country headed into Friday night. The National Weather Service issued Freeze Warnings for the Little Colorado River Valley of Coconino, Apache and Navajo Counties from midnight until 7 a.m. Saturday.
Saturday morning’s low temperature in Phoenix is expected to dip to 62. The National Weather Service says this will be the coolest we’ve been since late April.
The northwesterly air flow will shift Saturday from the west. This will allow afternoon temperatures to warm up. By Saturday afternoon, Phoenix is looking at a high of 92, with a high of 96 on Sunday.
The 100s look like they’re out of the picture for at least the next 7 days, but that doesn’t necessarily mean we’re done with the sweltering heat.
According to the National Weather Service, back in 1991, we saw 15 days during the month of October with temperatures in the 100s in Phoenix.