Overview

• Temperatures in the Bay Area have dropped sharply from Monday's highs in the low 80s, with many areas struggling to surpass 70 degrees today.
• A low-pressure system near the California coastline is generating humid southerly winds, which are driving the cooldown and increasing atmospheric moisture.
• Dense morning fog and increased cloud cover are expected across the Bay Area, with San Francisco and coastal areas particularly affected.
• There is a slight chance of rain showers or brief thunderstorms, especially in the South Bay near the Diablo Range, although overall probabilities remain low.
• The low-pressure system is forecast to persist into Wednesday, maintaining mild temperatures and a mix of sun and clouds.