If you planning to travel to Washington, DC, United States (IAD-Washington Dulles Intl.), 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 10:18 AM. The temperature feels like 89.75 with a humidity level of 78 so dress accordingly. Cloud coverage is 84 percent with visibility at 15 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southeast at a speed of 6 MPH. At the end of the day don’t miss the sunset at 12:08 AM.