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San Diego's Weather Forecast for October 21, 2024: Warmth will peak Wednesday

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All of San Diego continues to feel the warmth, and this trend isn't over yet! Daytime highs will hit their peak Wednesday before a gradual cooldown.

Temperatures will remain above average across the board. That means hanging in the low 70s to upper 80s along the coast and low-to-mid 80s inland.

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Still, the mornings will start out on the chillier side, so you'll want to think about leaving the house with a jacket before you head to school, work or wherever you're planning to be.

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Wednesday is the day to keep in mind, with temperatures climbing 5-10 degrees above average, especially in the mountains and deserts. After that, we can expect to be on a slight decline until we get back to conditions at or, in some spots, even below normal by the start of next work week.

The marine layer is expected to return as early as Thursday, bringing morning clouds and fog to coastal and inland neighborhoods.

Tuesday's Highs:
Coast: 70-81°
Inland: 80-88°
Mountains: 73-84°
Deserts: 87-94°

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