Patchy dense fog lingers along coastal areas in Orange and San Diego counties today, with visibility expected to improve by afternoon. Inland areas will experience highs 5-15 degrees above normal, ranging from the 60s and 70s in the mountains to near 80 in the Coachella Valley. High clouds will persist through Sunday, accompanied by minor cooling.
Dense fog could extend inland tonight into Sunday morning, potentially reaching the Interstate 15 corridor in San Diego County. A quick-moving trough on Tuesday brings cooler temperatures, breezy conditions, and light rain, mainly in the afternoon and evening. Rainfall totals are expected to stay under 0.25″. Dry weather returns Wednesday, with near-normal temperatures west of the mountains and warmer conditions in the deserts.