If you planning to travel to Mather House Museum, Port Jefferson, 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 12:14 PM. The temperature feels like 13.649999999999999 with a humidity level of 67 so dress accordingly. Cloud coverage is 37 percent with visibility at 13.8 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling southeast at a speed of 5 MPH. At the end of the day don’t miss the sunset at 9:29 PM.