Los Angeles, CA Weather Update: Mid-80s Heat Thursday Before Fog and Cooling Return Saturday

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Los Angeles, CA – Warm light floods downtown this morning as palm trees stand still against a cloudless December sky. But by weekend, Southern California’s steady sunshine gives way to a shallow marine layer — and the first signs of returning fog near the coast and inland valleys.

The National Weather Service in Oxnard calls for another warm, dry stretch through Friday, with highs near 84°F in East Los Angeles and upper 70s closer to the shoreline. Light offshore breezes will keep skies clear and humidity low. Residents should take advantage of the warm-up for outdoor plans or early holiday travel before cooler air arrives Saturday.

By late Saturday and into Sunday morning, patchy fog will redevelop across the San Gabriel Valley, coastal highways, and I-10 corridor, potentially reducing visibility to under a quarter mile before lifting midmorning. Sunday’s highs fall back to the low 70s, signaling the start of a modest cool-down next week.

Meteorologists note that long-range models show a possible pattern shift by mid-December, hinting at cooler Pacific air and a small chance for light rain late next week — a welcome change after this unusually dry and warm start to the month.

Five-Day Outlook (Los Angeles, CA)

  • Friday: Sunny, high 81°F, low 54°F.
  • Saturday: Mostly sunny, high 75°F, patchy fog late, low 54°F.
  • Sunday: Patchy fog early, then sunny, high 71°F, low 53°F.
  • Monday: Mostly sunny, high 77°F, low 54°F.
  • Tuesday: Sunny, high 78°F.