KTLA 5 Weather Forecast: Multiple Days of Rain for Southern California Nov. 11, 2025

Southern California Weather Outlook

• 🌧️ Multiple days of rain are expected for Southern California starting as early as Thursday night and continuing through Monday.
• ⚠️ The rain will vary in intensity, with periods of light, moderate, and potentially heavy rainfall, interspersed with some breaks.
• 🌡️ Current temperatures show a shallow marine layer, with downtown Los Angeles reaching 80 degrees, 6 degrees above average.

Storm System Details

• 🌊 The incoming weather system is influenced by a jet stream and a cut-off low, making precise modeling challenging.
• 💧 An atmospheric river is identified as a significant moisture source, contributing to the prolonged wet weather.
• ⛰️ South-facing mountain slopes are expected to receive the greatest amount of rain, potentially 2 to 4 inches, due to airflow interaction.

Potential Impacts and Conditions

• ⚠️ Snow levels will remain on the higher side, but potential impacts include flooding and thunderstorms, especially on Friday night.
• 🚗 Drivers should prepare for slick and difficult driving conditions, particularly during extended periods of rain.
• ⚡ Thunderstorms are a possibility, especially on Friday night when the coldest part of the air mass moves through.

Extended Forecast and Regional Breakdown

• 📊 The forecast indicates rain for the San Fernando Valley, high desert, and desert areas from Friday through Monday.
• ☀️ Pockets of sunshine are anticipated by Tuesday for the San Fernando Valley.
• 🏔️ Mountain areas will experience gray skies on Tuesday, with overnight temperatures in the teens on Monday and Tuesday.