A high pressure system dominating the air above the Wasatch Front early this week will weaken as the midweek arrives, bringing slightly warmer temperatures.
Still, that change, which will see afternoon thermometer readings leap from Tuesday’s upper-60s to the low-70s on Wednesday and mid-70s by Thursday, will prove brief.
Come Friday, the Salt Lake and Tooele valleys will return to clear, sunny daytime highs in the mid- to upper-60s give way to overnight lows in the upper-30s.



However, southern Utahns will have none of that.