A dense fog advisory is in place until 9 A.M. Saturday morning with visibility down to a quarter of a mile in some areas.
Dense fog and a building marine layer will continue through the weekend and into early next week. Temperatures will also be cooling through that time frame. Coastal highs will peak in the 60s through midweek next week, with lower 70s for inland valleys.
A system passing to the north brings slight rain chances to Southern California, but most of the rain will stay north of San Diego County. The highest chances for rain will be Tuesday evening and Wednesday morning, although totals will remain minimal.
At the end of the next week, a major shift brings Santa Ana winds, a rapid temperature increase and fire risk.
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