San Luis Obispo Rainfall ForecastUnited StatesCASan Luis Obispo CountySan Luis ObispoToday 17 Apr10%Fri 18 Apr5%Sat 19 AprNo RainSun 20 AprNo RainMon 21 AprNo RainTue 22 AprNo RainWed 23 AprNo RainSan Luis Obispo rainfall forecast issued today at 1:04 pm. Next forecast at approx. 3:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Vandenberg AFB RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads