The National Weather Service is predicting snow in some of the Bay Area's higher elevations.
Between late Monday afternoon and Tuesday morning, snow mixed with rain could fall between 400 and 1,000 feet and possibly as low as sea level, especially in the North Bay.
The North Bay mountains, East Bay hills and Santa Cruz Mountains may see 2 to 4 inches of snow above 1,000 feet and 4 to 8 inches in those areas above 2,000 feet between late Monday afternoon and Tuesday morning, according to the National Weather Service.
Potential hazardous driving conditions are expected on Highway 35 (Skyline Boulevard) in the Santa Cruz Mountains, Highways 9, 17, 29, 130 and on Grizzly Peak Boulevard in the Berkeley Hills between Monday afternoon and Tuesday morning.
Temperatures Monday night will range from the low 30s to low 40s regionwide and lows on Tuesday and Wednesday nights will be in the upper 20s to upper 30s regionwide. San Francisco should be around 40 degrees, the National Weather Service said.
The cold temperatures Tuesday and Wednesday nights will threaten vulnerable populations, sensitive vegetation and outdoor animals.
Light to moderate rainfall is predicted, and stronger showers and isolated thunderstorms may bring brief heavy rain with possible hail and lightning.
Rain amounts will be less than an inch in urban locations and up to an inch and 1.5 inches in the wettest locations. Showers will decrease Tuesday, the National Weather Service said.