If you planning to travel to Nantucket Atheneum, Nantucket, Massachusetts, 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 10:44 AM. The temperature feels like 35.75 with a humidity level of 92 so dress accordingly. Cloud coverage is 70 percent with visibility at 1 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling northeast at a speed of 10 MPH. At the end of the day don’t miss the sunset at 10:52 PM.