weather September 5, 2020 7:41 pm Vianey's Forecast: Excessive Heat Warning, Flex Alert in Effect Labor Day Weekend Triple-digit temperatures inland and mid-80s to mid-90s for areas closer to the San Francisco Bay prompted the National Weather Service to issue two weather alerts. US & World Videos 3:19 Bay Area forecast: Clearing, warming ahead 2:51 Cinthia's forecast: Spring storm, cooler temperatures 2:58 Jeff's Forecast: Saturday rain drops temps and brings major Sierra snow 3:25 Bay Area Forecast: Storm brings rain, colder temps and big Sierra snow 2:31 Forecast: Rainy Saturday ahead