"Rainfall is expected to decrease to the south with around one-quarter to one-half inch for the Inland Empire and Orange County, and around one-third inch across northern San Diego County to around one-tenth inch across southern San Diego County.

San Diego County was experiencing mild and dry weather Sunday, but rain is likely on the way later in the week, forecasters said.

Cooler, cloudier conditions and periods of light rain are forecast in San Diego County through Friday night as a weakening atmospheric river moves southward into Southern California, according to the National Weather Service.

Warm and dry weather will close out the weekend, with rain and snow expected in parts of the region by midweek, according to the National Weather Service.

San Diego County expects rain and mountain snow after severe Santa Ana winds and wildfires across Southern California, marking a hopeful turn in a dry water year.

Storm Watch will be in effect for the mountains from Sunday morning through Tuesday morning, bringing rain and, possibly, snow at higher elevations

While a stationary atmospheric river dumps rain and snow in northern and central California this week, areas south of Los Angeles, including San Diego, will get significantly less precipitation.