A weak storm system will push through Southern California on St. Patrick’s Day, bringing cooler temperatures, gusty winds and a chance of light rain across the region.

“We begin with the rain in Santa Barbara, San Luis Obispo County, Ventura County, and L.A. County this afternoon. You can see the increasing chances of rain likely, but we’re talking very, very light rain,” KTLA’s Kirk Hawkins said Monday morning.

Rain totals are expected to remain under a tenth of an inch for most areas south of Point Conception, according to the National Weather Service (NWS). KTLA’s Futurecast predicts the best chance of rain arriving later in the afternoon at around 4:15 p.m.

Futurecast 3-17-25
KTLA’s Futurecast shows predicted moisture over Southern California on March 17, 2025. (KTLA)

Monday’s system is also expected to bring northerly winds to the region, with wind advisories in place for our local mountains, the Antelope Valley and the coastal areas of Los Angeles and Ventura counties this afternoon and evening.

“These areas can expect wind gusts in the 40 to 50 mph range, with isolated gusts to 60 mph in wind-favored mountain locations,” the NWS stated.

Drier, warmer conditions are expected to arrive on Tuesday and continue through the rest of the week.