Letchworth State Park Rainfall ForecastUnited StatesNYWyoming CountyLetchworth State ParkToday 19 Apr80%Sun 20 Apr20%Mon 21 Apr40%Tue 22 Apr65%Wed 23 Apr10%Thu 24 Apr15%Fri 25 Apr35%Letchworth State Park rainfall forecast issued today at 4:04 am. Next forecast at approx. 6:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Buffalo RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads