Big Jim Mountain Lakes Rainfall ForecastUnited StatesWAChelan CountyBig Jim Mountain LakesToday 19 Apr10%Sun 20 Apr35%Mon 21 Apr5%Tue 22 AprNo RainWed 23 Apr5%Thu 24 Apr20%Fri 25 Apr25%Big Jim Mountain Lakes rainfall forecast issued today at 1:04 am. Next forecast at approx. 3:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Seattle RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads