If you planning to travel to Grand Prospect Hall, Brooklyn, 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 9:34 AM. The temperature feels like 57.35 with a humidity level of 99 so dress accordingly. Cloud coverage is 97 percent with visibility at 3 percent. Today’s UV index is 4, don’t forget the sunscreen if you need it! Today’s winds are traveling east-southeast at a speed of 7 MPH. At the end of the day don’t miss the sunset at 12:10 AM.