bay area weather August 20, 2024 5:45 am Cinthia's forecast: Warm Tuesday, major changes late week Coastal 60s-70s, valley 80s-90s with light afternoon winds. Cooler and spotty rain chances starting Thursday. Cinthia Pimentel has the Microclimate Forecast. US & World Videos 3:22 Forecast: Warm Bay Area inland with Lake County fire danger 2:48 Forecast: Bay Area gusts and cool down 2:55 Forecast: Morning clouds, warm temperatures continue inland 1:27 Watch: Bay Area Snow Over the Years 0:50 Snow on Highway 17 and Santa Cruz