Today through Saturday NightHigh pressure stays in control, which means a stubborn temperature inversion continues across the region. That’s keeping air stagnant in the valleys, with patchy fog and low clouds lingering in places like the Lower Treasure Valley, Western Magic Valley, and Long Valley this morning. That keeps dry weather locked in, but also makes fog, low clouds, and temperatures tricky to forecast in the valleys. Mountains stay well above normal, while valley locations remain stuck in the 30s to low 40s under cloud cover. Week ahead:Dry weatherAnother round of valley inversionsFog, low clouds, and stagnant air likely returning