If you planning to travel to Sun Lakes State Park, Coulee City, 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 3:13 PM. The temperature feels like 38.45 with a humidity level of 93 so dress accordingly. Cloud coverage is 91 percent with visibility at 6 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling southeast at a speed of 11 MPH. At the end of the day don’t miss the sunset at 12:14 AM.