bay area weather 8 hours ago Forecast: Cooler changes for the weekend Mostly sunny and mild weather for Friday. Saturday will be cloudier with a chance of rain. Cinthia Pimentel has the Microclimate Forecast. US & World Videos 3:28 Jeff's forecast: Spotty shower chance 2:13 Cinthia's forecast: Cooler changes for the weekend 2:31 Forecast: Early clouds, weekend shower chance & Fleet Week weather 3:41 Jeff's Forecast: Weekend shower chance as Fleet Week comes to SF 2:43 Forecast: More clouds and rain chances