If you planning to travel to Friendship Arch, 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 11:05 AM. The temperature feels like 50.75 with a humidity level of 82 so dress accordingly. Cloud coverage is 98 percent with visibility at 10.8 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling northeast at a speed of 11 MPH. At the end of the day don’t miss the sunset at 10:46 PM.