What to KnowScattered showers are in the forecast for Monday night before rain becomes more widespread overnight and into Tuesday morning.Downtown Los Angeles’ average rainfall for October is 0.57 inches, meaning the storm might deliver a month’s worth of rainfall or more in just a few hours.Flash flood watches will be in effect for recent burn scar areas, including the Eaton and Palisades fire zones. Roads will be slick with flooding possible in some locations during the morning drive. Temperatures on Tuesday will run 10 to 20 degrees below normal.
Evacuation warnings were issued Monday for wildfire burn areas, including the Palisades and Eaton fire zones, ahead of an October storm expected to deliver the first significant rain of the season in Southern California.
Evacuation warnings, meaning residents should make preparations evacuate, were issued for areas near the January fires in Pacific Palisades and Altadena. The warning area includes several Malibu-area neighborhoods.
Evacuation warnings also will go into effect for areas near the Mandeville Fire in Mandeville Canyon, located in the Santa Monica Mountains west of the 405 Freeway, the Hurst Fire in Sylmar and the Sunset Fire in the Hollywood Hills.
Evacuation warnings could be elevated to mandatory evacuation orders.
Los Angeles rain timeline
Widespread rain is expected overnight and into Tuesday from the first significant storm of the season, triggering flash flood watches and advisories for several areas and raising the risk of debris flows in wildfire burn zones.
In addition to steady showers, winds will pick up, especially in desert communities. Other possible impacts include road flooding, debris flows in wildfire burn areas, weak tornadoes and slick roads during the Tuesday morning drive.
Flash flood watches, indicating the possibility of flooding, will go into effect Monday night.
Heavy rain and gusty winds are in the forecast, causing concern for the burn scar areas. Brittany Hope reports for the NBC4 News at 6 a.m. on Oct. 13, 2025.
High rainfall rates are possible over recent burn scars, raising the threat of mudslides and debris flows. Rainfall rates could reach 0.25 to 0.50 inches per hour with higher rates possible if thunderstorms develop.
Wildfires strip vegetation, making hillsides more vulnerable to debris flows and mudslides.
The storm will mark the first significant rainfall in months for many areas. Downtown Los Angeles’ average rainfall for October is 0.57 inches, meaning the storm might deliver a month’s worth of rainfall or more in just a few hours.
Los Angeles and Ventura counties: 0.75 to 1.50 inches
Orange County and Inland Empire: 0.25 to 0.75 inches
Mountains and foothills: 1.50 to 3.50-plus inches