If you planning to travel to Harvard Square, Cambridge, 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 9:08 AM. The temperature feels like 69.1 with a humidity level of 56 so dress accordingly. Cloud coverage is 34 percent with visibility at 12.5 percent. Today’s UV index is 9, don’t forget the sunscreen if you need it! Today’s winds are traveling southwest at a speed of 6 MPH. At the end of the day don’t miss the sunset at 12:25 AM.