If you planning to travel to Lake Wilderness Arboretum, Maple Valley, 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 3:38 PM. The temperature feels like 37.15 with a humidity level of 76 so dress accordingly. Cloud coverage is 4 percent with visibility at 13.4 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling south at a speed of 2 MPH. At the end of the day don’t miss the sunset at 1:04 AM.