bay area weather 10 hours ago Kari's forecast: Summer heat this weekend Meteorologist Kari Hall has details on hot weather this weekend in the Microclimate Weather forecast. US & World Videos 3:29 Jeff's forecast: Heat makes a comeback 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 2:43 Kari's forecast: Clear and warm