The National Weather Service issued a frost informing Friday nighttime for parts of the Bay Area.
The informing volition will beryllium successful effect from 12 to 9 a.m. Saturday for the North Bay valleys, Southern Salinas Valley, and interior mountains of Monterey and San Benito counties.
It’s expected to lukewarm up considerably aft Monday arsenic we get much clouds and rainfall chances back.
Here's a database of warming centers successful the Bay Area.