San Francisco July 22, 2017 5:40 pm Rob's Forecast: Sunday Heat Before Cooling Warm temperatures will return Sunday before a slight cooling trend takes into effect. US & World Videos 3:45 Rob's Forecast: Frosty valleys, gusty mountain wind 2:40 Forecast: Frosty valleys, gusty mountain wind 2:16 Cinthia's forecast: Morning fog, windy ahead 3:09 Rob's Forecast: Morning fog, hazy sunshine 2:57 Forecast: Morning fog, hazy sunshine