If you planning to travel to Squak Mountain State Park, Issaquah, 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 3:28 PM. The temperature feels like 38.900000000000006 with a humidity level of 93 so dress accordingly. Cloud coverage is 99 percent with visibility at 7.7 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southeast at a speed of 4 MPH. At the end of the day don’t miss the sunset at 1:16 AM.