TUCSON, Ariz. (KGUN) — A significant warming trend is set to take hold across southeastern Arizona this week, with temperatures climbing well above seasonal averages by the second half of the workweek.
Highs are expected to run 13 to 19 degrees above normal, with Tucson potentially reaching its first 90-degree day of the year by Friday and into next weekend.
Before the heat fully settles in, mornings will start on a cooler note across southern Arizona. Overnight lows in Pima County will dip into the upper 40s and low 50s, with Tucson falling to around 48 degrees. Cochise County will be colder, with lows in the upper 30s to low 40s. Sierra Vista is expected to wake up to 41 degrees…