If you planning to travel to Naval Submarine Base New London, Groton, Connecticut, 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 11:45 AM. The temperature feels like 40.05 with a humidity level of 86 so dress accordingly. Cloud coverage is 78 percent with visibility at 11.1 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southeast at a speed of 12 MPH. At the end of the day don’t miss the sunset at 9:22 PM.