Columbia River - Cowlitz River Entrance Rainfall ForecastUnited StatesWACowlitz CountyColumbia River - Cowlitz River EntranceToday 19 Apr15%Sun 20 Apr70%Mon 21 Apr20%Tue 22 AprNo RainWed 23 AprNo RainThu 24 Apr25%Fri 25 Apr40%Columbia River - Cowlitz River Entrance rainfall forecast issued today at 3:04 am. Next forecast at approx. 5:04 pm.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