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 11:46 AM. The temperature feels like 44.35 with a humidity level of 93 so dress accordingly. Cloud coverage is 94 percent with visibility at 6 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling east at a speed of 18 MPH. At the end of the day don’t miss the sunset at 9:28 PM.