TUCSON, Ariz. (KGUN) — The weekend will bring more warm temperatures with highs in the upper 80s and overnight lows in the low to mid-50s, but the extreme heat arrives this coming week.
By Tuesday, a strong ridge of high pressure will be parked over the Desert Southwest and allow temperatures to soar to record levels.
Extreme Heat Watches have already been posted for most of southern Arizona and will be in effect from Thursday morning through Sunday evening of next weekend…