If you planning to travel to Princeton, NJ, United States (PCT), 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 9:29 AM. The temperature feels like 70.8 with a humidity level of 53 so dress accordingly. Cloud coverage is 33 percent with visibility at 11.8 percent. Today’s UV index is 11, don’t forget the sunscreen if you need it! Today’s winds are traveling west-northwest at a speed of 6 MPH. At the end of the day don’t miss the sunset at 12:32 AM.