weather September 4, 2020 12:02 am Jeff's Forecast: 100° to 110° Heat Wave Chief Meteorologist Jeff Ranieri tracks heat wave headed to the Bay Area Labor Day Weekend in your Microclimate Forecast. US & World Videos 3:31 Forecast: AM clouds, clearing and warm inland 2:25 Forecast: Slight valley warm-up 3:29 Kari Hall honored for climate reporting 2:06 Kari's forecast: Slight valley warm-up 2:22 Rob's forecast: coastal clouds, warmer inland