Cooler Saturday with a 5 to 25-degree temperature drop by Sunday as a cold storm moves over Southern California. Thick marine layer clouds may produce patchy drizzle in the morning with a slight chance of isolated to scattered showers Saturday night through Sunday, lingering into Monday and maybe even Tuesday, mainly near the mountains.
There is a slight chance of an isolated thunderstorm overnight Saturday into Sunday, though most thunderstorm activity will be well north of San Diego County.
Accumulations will be light from a few hundredths to .25″ for most and isolated amounts up to .50″, mainly near the mountains. Little to no rain is expected in the deserts. A dusting of snow will be possible for the higher elevations of Mt. Laguna, Palomar Mountain, Cuyamaca Peak and Lookout Mountain…