Memorial Day weekend weather: Will it rain in Orange County?

A low-pressure system is approaching Southern California on Saturday, bringing with it a chance of rain as the Memorial Day weekend gets underway.
The National Weather Service is predicting cooler temperatures on Saturday with increasing clouds but very little chance of rain in the Orange County area. That rain chance leaps to about 20% on Sunday afternoon and 50% to 70% on Sunday evening.
By Monday morning — Memorial Day — the chance of rain drops to 13% in the morning and 3% in the