bay area weather 14 hours ago Jeff's forecast: Heat makes a comeback this weekend Fall will officially be here this weekend but it’s going to feel like summer. Chief Meteorologist Jeff Ranieri has your full seven-day forecast. US & World Videos 2:36 Jeff's Forecast: Morning fog as inland temps heat up 2:41 Kari's forecast: Summer heat this weekend 1:51 Kari's forecast: Summer heat returns 2:46 Forecast: Early fog chance as temps to soar by the weekend 3:21 Forecast: Hotter Bay Area weekend