Weekend rainfall forecast
Cumulative rainfall forecast through Sunday by the National Weather Service.

The National Weather Service office in San Diego is forecasting a wet weekend for the region as a storm slowly moves through Southern California.

“A slow-moving low-pressure system will move across the area through Sunday bringing periods of showers and occasional slight chances of thunderstorms with Saturday having the best chance of precipitation,” the weather service said in the forecast issued at 10 a.m. on Thursday.

Coast and valley areas could see up to a half an inch, and the mountains could get up to 1.5 inches, with locally higher amounts possible.

Up to a tenth of an inch of rain fell in parts of San Diego County on Thursday morning.

It will be wet, but not particularly cold, over the weekend, with highs in the mid 60s along the coast and inland, and 5 to 10 degrees cooler in the mountains.

The weather service warned of slippery roads and street flooding throughout the period.

The region is expected to dry out and warm up beginning early next week.

Chris Jennewein is founder and senior editor of Times of San Diego.