Los Angeles/ Weather & Environment

Downtown L.A. Heads for 90s as High Surf and Tidal Flooding Slam Coast

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Published on September 28, 2026
Downtown L.A. Heads for 90s as High Surf and Tidal Flooding Slam CoastSource: Adam Jones / Wikimedia Commons

Downtown Los Angeles is starting Monday near 66 degrees, with mostly sunny skies and an afternoon high around 85. That comfortable setup is the cool end of a forecast that turns noticeably hotter by the weekend. Along the coast, larger surf and unusually high tides are creating a separate hazard through Tuesday.

Sunshine Monday, Heat Builds Tuesday

Monday should stay dry and sunny, with southwest winds reaching up to 10 mph and a nighttime low near 65. Tuesday climbs to about 88 degrees under clear skies, followed by a slightly cooler Wednesday near 86 before the heat ramps up again. The National Weather Service says increasing heat concerns are expected through at least the weekend.

Weekend Temperatures Push Into The 90s

Valleys are expected to reach the 90s, with a 40 percent chance of triple-digit highs in the warmest valleys Friday or Saturday. Heat concerns are expected through at least the weekend. Sunny forecasts continue through Friday, making hydration and morning outdoor plans the practical strategy.

High Surf And Coastal Flooding Continue Through Tuesday

Beachgoers heading toward Long Beach, Malibu or other south-facing shores should take extra care through Tuesday afternoon. Surf in Los Angeles and Ventura counties could reach 4 to 7 feet, while high tides near 7 feet late in the morning raise significant coastal-flooding concerns at vulnerable south-facing beaches. Surf and coastal-flooding concerns continue through Tuesday, a sharper turn from the cooler outlook covered in Hoodline's earlier forecast.