If you planning to travel to Stony Brook Grist Mill and Museum, Brewster, Massachusetts, 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 9:53 AM. The temperature feels like 73.45 with a humidity level of 97 so dress accordingly. Cloud coverage is 71 percent with visibility at 7 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling south at a speed of 10 MPH. At the end of the day don’t miss the sunset at 11:31 PM.