If you planning to travel to Letchworth State Park, Portageville, New York, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 12:39 PM. The temperature feels like 24 with a humidity level of 93 so dress accordingly. Cloud coverage is 63 percent with visibility at 9 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southeast at a speed of 1 MPH. At the end of the day don’t miss the sunset at 9:45 PM.