Corvallis Rainfall ForecastUnited StatesMTRavalli CountyCorvallisToday 19 AprNo RainSun 20 Apr35%Mon 21 Apr65%Tue 22 Apr5%Wed 23 Apr10%Thu 24 Apr15%Fri 25 Apr25%Corvallis rainfall forecast issued today at 2:04 am. Next forecast at approx. 4:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Missoula RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads