PHOENIX (AZFamily) — It is the final day of summer, something we all celebrate in Arizona.
Fall officially starts Monday, and there is a low-pressure system that is pushing in cooler temperatures and a chance of a few scattered showers and thunderstorms late Sunday through Monday.
On Tuesday and Wednesday, a ridge of high pressure will warm things up above average. The warmest temperature will be around 104 on Wednesday. Our average high this time of year is 101 degrees…