weather December 17, 2021 5:24 pm Jeff's Forecast: Cold 30s, Fog Chance & Rain Next Week Chief Meteorologist Jeff Ranieri tracks the active weather pattern that will bring frost and fog chances. Plus, how much rain next week in your Microclimate Forecast. US & World Videos 2:49 Jeff's Forecast: Hot 90s to 100 for parts of the Bay Area 2:12 Fire destroys apartment under construction 3:46 Forecast: Excessive heat, mild weekend 4:52 Watch: Fire chief details fight against massive Redwood City blaze 2:04 Kari's forecast: Mild day, heat ahead