Mostly dry conditions are in the forecast Friday in the Inland Empire but wet weather will return Saturday and through the weekend off and on, according to the National Weather Service.
“We’re monitoring an incoming low pressure system that is currently developing north off the coast of the Pacific Northwest,” according to an NWS statement. “This low will slowly move south and east over much of this week, eventually bringing cooler and wetter conditions to Southern California.”
Isolated thunderstorms are possible in the Inland Empire and snow levels will be above 7,500 feet in the Riverside County mountain communities Saturday.
Surface prognostication charts published by the agency indicated back-to-back troughs crossing the region over the three-day period, but meteorologists said the bulk of the moisture would stay off the coast and to the south until Friday.
After the storm system exits to the east Saturday, it will be replaced by a ridge of high pressure, which will influence weather patterns going into next week, with generally warmer, drier conditions for the Thanksgiving holiday period, according to the NWS.
Temperatures in the Riverside metropolitan area through Saturday will see a slight cooling trend, with daytime highs peaking in the low 70s and lows holding in the 50s.