Tuesday is in line to be San Francisco’s hottest October day in nearly three decades, and parts of the city could hit 100 degrees as an autumn heat wave threatens records across the Bay Area. The Mission District, Bernal Heights, South of Market and other neighborhoods on the eastern half of the city may flirt with triple-digit temperatures. If San Francisco’s official weather station at Duboce Triangle surpasses 95 degrees, it would be the hottest October day since 1996. Stay up to date with weather news all day long at the link in our bio. #sanfrancisco #cawx #californiaweather #heatwave