The rain may have passed but frost is making its way into San Diego, the National Weather Service (NWS) reports.
The NWS has issued a frost advisory for San Diego County effective at midnight through 8 a.m. Sunday.
During this overnight frosty phase, temperatures are expected to be mainly in the upper 30s, with the coldest areas falling briefly into the upper 20s.
As always with a frost warning, the NWS says sensitive plants may be damaged, so plant owners are advised to cover their crops.
As for the roadways, bridges and overpasses may become slippery and hazardous with frost, so motorists are urged to drive with caution.