bay area weather 19 hours ago Forecast: Last hot day Meteorologist Kari Hall has a look at cooler weather ahead and the warmer weekend outlook in the Microclimate Forecast. US & World Videos 2:39 Jeff's Forecast: Fog returns as temps set to drop across the Bay Area 3:30 Jeff's forecast: What's causing a huge temperature drop 2:54 National Weather Service upgrades its radar systems 2:23 Kari's forecast: Last hot day 2:51 Jeff's forecast: Quick warming as inland heat continues and what drops temps mid-week