If you planning to travel to Route 66 State Park, Eureka, Missouri, 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 12:53 PM. The temperature feels like 51.199999999999996 with a humidity level of 78 so dress accordingly. Cloud coverage is 40 percent with visibility at 13.5 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling south at a speed of 6 MPH. At the end of the day don’t miss the sunset at 10:43 PM.