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 12:50 PM. The temperature feels like 30.8 with a humidity level of 60 so dress accordingly. Cloud coverage is 22 percent with visibility at 14.7 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling west-northwest at a speed of 13 MPH. At the end of the day don’t miss the sunset at 10:44 PM.