Microclimate Forecast September 19, 2024 5:24 pm Forecast: Hotter Bay Area weekend Chief Meteorologist Jeff Ranieri tracks what’s causing the incoming heat and how long it lasts in your seven-day Microclimate Forecast. US & World Videos 2:36 Jeff's Forecast: Morning fog as inland temps heat up 3:29 Jeff's forecast: Heat makes a comeback this weekend 2:41 Kari's forecast: Summer heat this weekend 1:51 Kari's forecast: Summer heat returns 2:46 Forecast: Early fog chance as temps to soar by the weekend