Weather News

Storm expected to bring more rain to SLO County. How much fell last night?

Coming out of a wet weekend, San Luis Obispo County residents can expect to keep battening down the hatches for the next few days.

An atmospheric river storm is continuing to move through the Central Coast, bring rain, high winds and flood advisories.

Overnight, parts of the county received more than an inch of total rainfall, with Rocky Butte leading all National Weather Service collection points locally with 1.02 inches.

Cambria led most communities overnight, with 0.4 inches of rain, according to the Weather Service.

Here’s how much rain fell across San Luis Obispo County last night:

  • Arroyo Grande: 0.1 inches
  • Atascadero: 0.12 inches
  • Cambria: 0.45 inches
  • Davis Peak (near Montaña de Oro): 0.24 inches
  • Las Tablas: 0.22 inches
  • Los Osos: 0.09 inches
  • Nacimiento River (county line): 0.44 inches
  • Oceano: 0.01 inches
  • Paso Robles: 0.03 inches
  • Rocky Butte: 1.02 inches
  • Salinas Dam: 0.02 inches
  • San Luis Obispo (Broad Street and Industrial Way) 0.3 inches
  • San Luis Obispo at Cal Poly: 0.4 inches
  • Santa Margarita East: 0.01 inches
  • Templeton: 0.4 inches
Rain in downtown San Luis Obispo makes concentric circles in a puddle at Blackhorse Espresso and Bakery on Higuera Street on the morning of Nov. 17, 2025.
Rain in downtown San Luis Obispo makes concentric circles in a puddle at Blackhorse Espresso and Bakery on Higuera Street on the morning of Nov. 17, 2025. David Middlecamp dmiddlecamp@thetribunenews.com

High winds expected in SLO County

As the day progresses, rain was expected to let up somewhat, though a wind advisory will remain in effect for parts of the county until noon, according to a weather message from the National Weather Service.

San Luis Obispo County residents living in the La Panza Range and Santa Margarita Lake areas can expect strong southerly winds between 20 and 30 mph, with gusts up to 45 mph.

Drivers on Highways 154 and 166 should keep an eye out for gusty cross winds on the roadway, according to the advisory.

A flood advisory through noon was also issued in western San Luis Obispo County near the Gifford Fire burn scars, with potential minor mud and debris flows, according to the county Office of Emergency Services.

A portion of Highway 1 was closed from Ragged Point into Monterey County on Nov. 16, 2025, due to rock and mud slides. The closure ran to four miles north of Lucia.
A portion of Highway 1 was closed from Ragged Point into Monterey County on Nov. 16, 2025, due to rock and mud slides. The closure ran to four miles north of Lucia. Caltrans District 5

As the week progresses, San Luis Obispo County residents should prepare for intermittent rain, with a few gaps.

In San Luis Obispo, temperatures were expected to fall in the mid- to high-50s all week, with rainfall becoming more sparse as the weekend approaches, according to the Weather Service.

Thunderstorms were possible after 10 a.m., with rainfall totals expected between a tenth and quarter of an inch.

The United States Postal Service office on Marsh Street in San Luis Obispo was flooded during an atmospheric river event on Monday, Nov. 17, 2025.
The United States Postal Service office on Marsh Street in San Luis Obispo was flooded during an atmospheric river event on Monday, Nov. 17, 2025. Joan Lynch jlynch@thetribunenews.com

A slight chance of rain will give way to sunshine on Tuesday afternoon, as temperatures reach a peak of 60 degrees.

Those conditions were expected to hold for all of Wednesday, while Thursday and Friday have increasingly lower chances of rain showers. By the weekend, sunshine is expected, with highs of 66 and 68 degrees on Saturday and Sunday.

That’s largely the same story across the county, with few exceptions in temperature or rainfall amount.

A couple shares an umbrella as rain falls in front of the Kennedy Library at Cal Poly on Nov. 13, 2025.
A couple shares an umbrella as rain falls in front of the Kennedy Library at Cal Poly on Nov. 13, 2025. David Middlecamp

Weather opens warming centers, causes power outages

As the storm progresses, some parts of the county have suffered mudslides, flooding and now, power outages.

According to a news release from the city of Paso Robles, parts of the city’s library and City Hall lost power on Monday morning.

Some parts of the affected buildings still had power, including the City Hall’s utility billing services, development permitting office and city clerk’s office, and PG&E was working to restore service.

But in a news release at 11:20 a.m., the city said the library and City Hall lobby would remain closed for the rest of the day.

This painting of a dog on a traffic signal box doesn’t seem to mind the rain in downtown San Luis Obispo at Marsh and Santa Rosa streets on Nov. 17, 2025.
This painting of a dog on a traffic signal box doesn’t seem to mind the rain in downtown San Luis Obispo at Marsh and Santa Rosa streets on Nov. 17, 2025. David Middlecamp dmiddlecamp@thetribunenews.com

Elsewhere, 40 Prado Homeless Services Center’s Warming Center — which is opened during storms and the coldest nights of the year — opened over the weekend and will be available Monday evening for homeless San Luis Obispo County residents, the Community Action Partnership of San Luis Obispo said in a release.

Up to 40 people can check in between 7 and 9 p.m. at 40 Prado, which will also serve as Morro Bay’s warming center via a free shuttle for homeless individuals in Morro Bay, according to the CAPSLO release. Pick-up is at Morro Bay Park at 734 Harbor St. at 6:15 p.m. and South Bay Community Center at 2180 Palisades Ave. in Los Osos at 6 p.m.

The warming centers are in urgent need of warm blankets and volunteers, who can sign up at CAPSLO’s website.

The United States Postal Service office on Marsh Street in San Luis Obispo was flooded during an atmospheric river event on Monday, Nov. 17, 2025.
The United States Postal Service office on Marsh Street in San Luis Obispo was flooded during an atmospheric river event on Monday, Nov. 17, 2025. Joan Lynch jlynch@thetribunenews.com

This story was originally published November 17, 2025 at 11:00 AM.

Related Stories from San Luis Obispo Tribune
Joan Lynch
The Tribune
Joan Lynch is a housing reporter at the San Luis Obispo Tribune. Originally from Kenosha, Wisconsin, Joan studied journalism and telecommunications at Ball State University, graduating in 2022.
Get unlimited digital access
#ReadLocal

Try 1 month for $1

CLAIM OFFER