Along the Wasatch Front, valley inversions will strengthen through Wednesday night and stick around until Friday, peaking Thursday before weakening as a cold front rolls in.
A slow-moving storm will bring precipitation to Southern Utah off & on through midweek. Sunny skies in the north with increasing valley haze. Rain & snow is likely across the north this weekend.
A slow-moving storm in Arizona will bring more scattered snow showers to the south, while valley inversions keep it hazy in the north. Warmer this weekend with valley rain & mountain snow likely.