The National Weather Service in the San Francisco Bay Area has issued a freeze watch for Monday evening into early Tuesday morning.
Expect temperatures between 25 to 35 degrees fahrenheit from San Francisco to San Jose, which means that sub-freezing temperatures are possible.
The freeze comes as a result of a passing low pressure system, which will leave behind a cold air mass.
The service warns that the conditions could kill crops and other sensitive vegetation. For tips on , click to this article from Gilroy Patch.