Cool temperatures, light showers expected across Southern California this week

Southern California faces below-normal temperatures and a chance of scattered showers through midweek, the National Weather Service said Sunday, as a weak low-pressure system prepares to move into the region.

The forecast affects Orange County and neighboring communities during the final days of April, a period when residents typically begin to expect warmer, drier spring conditions — making this week's cold snap a notable departure from seasonal norms.

Temperatures across the region are forecast to reach only into the sixties this week — six to 12 degrees below normal — with Sunday and Monday remaining mostly dry before conditions deteriorate midweek, KTLA reported, citing the National Weather Service's area forecast discussion.

"Sprinkles or light showers may carry over into Sunday morning, mainly the Central Coast and in the mountains, otherwise still cool Sunday with temperatures in the sixties, six to twelve degrees below normal [but] dry weather is expected for most areas Sunday and Monday," the National Weather Service said in its forecast discussion.

A weak low-pressure system is expected to push into Central and Southern California by late Tuesday or Wednesday, bringing a return of unsettled weather. "Below normal temperatures will continue through the middle of next week with another weak storm possible around late Tuesday or Wednesday," the weather service said.

Residents should not expect significant rainfall despite the incoming system. "Showers are going to be few and far between with minimal amounts and impacts," the National Weather Service said.

A warming trend is forecast to develop later in the week, according to KTLA.

The National Weather Service said mountain and Central Coast communities face the greatest chance of early showers, while most of the Southland — including Orange County — should see only marginal impacts before conditions improve heading into the weekend.