Seaside Rainfall ForecastUnited StatesORClatsop CountySeasideToday 15 AprNo RainWed 16 AprNo RainThu 17 AprNo RainFri 18 Apr5%Sat 19 Apr10%Sun 20 Apr35%Mon 21 Apr15%Seaside rainfall forecast issued today at 5:04 pm. Next forecast at approx. 7:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Portland RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads