If you planning to travel to Bethpage State Park, Old Bethpage, 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 11:55 AM. The temperature feels like 41.4 with a humidity level of 71 so dress accordingly. Cloud coverage is 34 percent with visibility at 12.7 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling west at a speed of 7 MPH. At the end of the day don’t miss the sunset at 9:27 PM.