bay area weather December 18, 2022 2:37 pm Forecast: Patchy Dense Fog, Frosty Start A dense fog advisory begins for the inland East Bay with some patchy areas of fog likely elsewhere. US & World Videos 3:05 Jeff's Forecast: Rain timeline into Christmas week 3:54 Jeff's forecast: Bay Area rain returns 2:39 Forecast: Saturday showers 2:10 Kari's forecast: Saturday showers 3:07 Forecast: Early fog and how much rain starting Saturday