Marietta Rainfall ForecastUnited StatesGACobb CountyMariettaToday 18 AprNo RainSat 19 AprNo RainSun 20 AprNo RainMon 21 Apr15%Tue 22 Apr60%Wed 23 Apr40%Thu 24 Apr35%Marietta rainfall forecast issued today at 9:05 pm. Next forecast at approx. 11:05 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Atlanta RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads