If you planning to travel to Roslyn Museum, Roslyn, 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 12:58 PM. The temperature feels like 70.05 with a humidity level of 56 so dress accordingly. Cloud coverage is 8 percent with visibility at 14.9 percent. Today’s UV index is 8, don’t forget the sunscreen if you need it! Today’s winds are traveling west at a speed of 9 MPH. At the end of the day don’t miss the sunset at 3:17 AM.