bay area weather September 15, 2024 11:27 pm Forecast: Showers and cool temps start the week The last week of Summer definitely feeling more like Fall with showers possible Monday and even a slight chance for isolated thunder at times. Rob Mayeda has more in the Microclimate forecast. US & World Videos 1:54 Kari's forecast: Clearing and warmer 2:39 Jeff's forecast: Big weekend heat on the way 3:35 Jeff's forecast: Why temps soar this weekend 3:01 Kari's forecast: Rain possible 2:18 Kari's forecast: Rain possible today