Rain, Thunderstorms, and Cooler Temps in San Diego
Rain, Thunderstorms, and Cooler Temps in San Diego
US · Published Oct 21, 2026
• San Diego is experiencing a significant weather shift as a Pacific storm brings rain and cooler temperatures to the region.
• Patchy fog is expected Wednesday morning, followed by increasing winds and a chance of rain starting Wednesday evening through Friday morning, with the heaviest rainfall likely on Thursday.

Impact & Risks

The storm will bring isolated to scattered rain showers, with rainfall totals ranging from 0.5 to 1 inch, and higher amounts possible in areas affected by thunderstorms. Gusty winds in the mountains and deserts could create hazardous travel conditions, while patchy fog may reduce visibility during the Wednesday morning commute. Cooler temperatures may also impact outdoor activities, particularly in the mountains and valleys. Residents should prepare for periods of heavy rain and potential thunderstorms, which could lead to localized flooding in low-lying areas.

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