August 1, 2013 1:00 pm Beautiful Start To August; Weekend Changes Ahead Meteorologist Christina Loren has your NBC Bay Area weather forecast. US & World Videos 2:31 Forecast: Rainy Saturday ahead 2:12 Kari's forecast: Rainy Saturday ahead 2:48 Jeff's Forecast: Dry Friday; rain returns this weekend 3:48 Jeff's Forecast: Weekend rain timeline 2:42 Forecast: Warm day, Saturday rain