If you planning to travel to San Juan County Park, Friday Harbor, 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 4:00 PM. The temperature feels like 48.900000000000006 with a humidity level of 93 so dress accordingly. Cloud coverage is 61 percent with visibility at 11.9 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling east at a speed of 7 MPH. At the end of the day don’t miss the sunset at 12:19 AM.