When will it rain in Murrieta this week? National Weather Service

Southwest Riverside County is expected to see its first fall rains this week.

November 13, 2023 at 3:12 PM PST | Updated November 13, 2023 at 3:57 PM PST

MURRITA, Calif. — The first fall rain showers of the season could hit Murrieta Wednesday into Saturday morning, according to the National Weather Service.

“We are monitoring the incoming low pressure system currently developing northward off the Pacific Northwest coast,” a statement from the NWS said. “This low will slowly move south and east through most of this week, ultimately bringing cooler and wetter conditions to Southern California.”

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The storm is not expected to become severe until Friday afternoon or evening, with only scattered light rain falling in the area on Wednesday and Thursday, forecasters said.

“Count in at least some measurable rain on Wednesday and Thursday nights,” the Meteorological Service said. “Think sprinkles down to a quarter of an inch. Mountains are expected to see accumulations at the upper end of that range.”

The agency indicated that successive troughs were crossing the area over the course of the three days. However, meteorologists expect the bulk of the moisture will remain off the Southern California coast through Friday.

“The highest (possibility) for heavy rainfall rates is late Friday in most locations,” the Met Office said. “So that period holds the greatest potential for any runoff or significant flood threat.”

The storm system should move out to the east on Saturday. A series of high pressure will follow through Thanksgiving week, with generally warmer and drier conditions, according to the National Weather Service.

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

National Weather Service forecast for Murrieta:

Tuesday
Mostly sunny, with a high near 79. Winds light and variable becoming southwesterly at 5 to 10 mph in the afternoon.

Tuesday night
Chance of shower after 5am. Partly cloudy, with an east wind around 48. East wind around 5 mph. The chance of rain is 30%.

Wednesday
Shower, especially after 11 a.m. High near 72. East wind 5 to 10 mph becoming southwest in the afternoon. The probability of rain is 80%. The possibility of new rainfall amounts of less than a tenth of an inch.

Wednesday night
Bathing. Low temp around 54. East wind around 5 mph. The probability of rain is 80%. New rainfall amounts are likely between a tenth and a quarter of an inch.

Thursday
Rain is likely, especially before 11am. Partly sunny, with a high near 65. A 60% chance of rain.

Thursday night
Rain is likely, especially after 11 p.m. Mostly cloudy, with a low around 52 degrees. The probability of rain is 60%.

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

Friday night
Showers likely. Partly cloudy, with the temperature dropping to around 51.

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

Saturday night
Slight chance of rain showers. Partly cloudy, with a low around 49 degrees.

Sunday
Mostly sunny, with a high near 66.

Sunday night
Mostly clear, low around 47.

Monday
It’s sunny most of the time, and the high temperature is near 74.