September 9, 2015 6:30 pm 108° Bay Area Heat The hottest stretch of heat this Summer and likely of the past few years is gripping the Bay Area. Chief Meteorologist Jeff Ranieri tracks 108° heat. Plus, a heat advisory until Thursday. US & World Videos 2:46 Jeff's forecast: Warm temps, wind and next rain chance timing 2:48 Forecast: Gradual warming trend 1:35 Kari's forecast: Gradual warming trend 2:59 Rob's forecast: Warmer days ahead 3:34 Bay Area Forecast: Warmer days ahead