If you planning to travel to Pioneer Building, Seattle, Washington, 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 12:20 PM. The temperature feels like 60.6 with a humidity level of 62 so dress accordingly. Cloud coverage is 20 percent with visibility at 15.2 percent. Today’s UV index is 8, don’t forget the sunscreen if you need it! Today’s winds are traveling southwest at a speed of 7 MPH. At the end of the day don’t miss the sunset at 3:54 AM.