If you planning to travel to Mountainside, New Jersey, 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 9:40 AM. The temperature feels like 76.6 with a humidity level of 96 so dress accordingly. Cloud coverage is 96 percent with visibility at 10.2 percent. Today’s UV index is 4, don’t forget the sunscreen if you need it! Today’s winds are traveling east-northeast at a speed of 11 MPH. At the end of the day don’t miss the sunset at 12:29 AM.