When Will It Rain In Murrieta This Week? National Weather Service

MURRIETA, CA — The first rain showers of the fall season could hit Murrieta Wednesday through Saturday morning, 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."

The storm system is not anticipated to turn intense until Friday afternoon or evening, with only scattered light rain in the region Wednesday and Thursday, forecasters said.

"Count on at least some measurable rainfall Wednesday night and Thursday," the NWS stated. "Think sprinkles to one-quarter of an inch. The mountains are expected to see accumulations on the upper end of that range."

The agency indicated back-to-back troughs were crossing the region over the three days. Still, meteorologists predict that the bulk of the moisture will stay off Southern California's coast until Friday.

"The highest (probability) for heavier rainfall rates is late Friday for most locations," the Weather Service said. "So that period holds the greatest potential for any significant runoff or flood threat."

The storm system should exit to the east on Saturday. A ridge of high pressure will follow over Thanksgiving week, with generally warmer, drier conditions, according to the NWS.

Temperatures in the Riverside metropolitan area Monday and Tuesday will reach 80 degrees during the day and the low 50s overnight. Wednesday to Saturday will see a slight cooling trend, with daytime highs peaking in the low 70s and lows holding in the 50s.

The National Weather Service Forecast Murrieta:

Tuesday
Mostly sunny, with a high near 79. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

Tuesday Night
A chance of showers after 5am. Partly cloudy, with a low around 48. East wind around 5 mph. Chance of precipitation is 30%.

Wednesday
Showers, mainly after 11am. High near 72. East wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night
Showers. Low around 54. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday
Showers likely, mainly before 11am. Partly sunny, with a high near 65. Chance of precipitation is 60%.

Thursday Night
Showers likely, mainly after 11pm. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.

Friday
Showers likely. Partly sunny, with a high near 65.

Friday Night
Showers likely. Mostly cloudy, with a low around 51.

Saturday
Showers likely. Partly sunny, with a high near 66.

Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 49.

Sunday
Mostly sunny, with a high near 66.

Sunday Night
Mostly clear, with a low around 47.

Monday
Mostly sunny, with a high near 74.