If you planning to travel to United States Naval Observatory, Washington, District of Columbia, 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 12:24 PM. The temperature feels like 31 with a humidity level of 73 so dress accordingly. Cloud coverage is 61 percent with visibility at 14.4 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling west at a speed of 4 MPH. At the end of the day don’t miss the sunset at 9:51 PM.