A mere one degree cooler than yesterday is just a sign that the cooling trend has begun and we can expect further cooling through the week.
The reason for the cooling is a trough of low pressure that is strengthening onshore flow. Gusty west winds will continue to be a part of our desert's weather story through Thursday.
The associated low pressure system will bring more rain and snow to Southern California as early as Wednesday night.
A Winter Weather Advisory goes into effect 7:00 p.m. Wednesday for elevations above 3.500'. 3-6" are expected above 5,000'.
The cooling continues into Thursday where highs will drop into the 60s!
A slight chance for showers exist for Thursday evening but accumulation would be minimal, if any at all.