San Francisco Bay Rainfall ForecastUnited StatesCAAlameda CountySan Francisco BayToday 17 AprNo RainFri 18 AprNo RainSat 19 AprNo RainSun 20 AprNo RainMon 21 AprNo RainTue 22 AprNo RainWed 23 AprNo RainSan Francisco Bay rainfall forecast issued today at 12:04 am. Next forecast at approx. 2:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time San Francisco RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads