If you planning to travel to Powder House Square, Somerville, 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 10:40 AM. The temperature feels like 51.349999999999994 with a humidity level of 85 so dress accordingly. Cloud coverage is 98 percent with visibility at 9.6 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling south at a speed of 4 MPH. At the end of the day don’t miss the sunset at 10:23 PM.