If you planning to travel to River City Casino, St Louis, 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 1:16 PM. The temperature feels like 28.75 with a humidity level of 71 so dress accordingly. Cloud coverage is 7 percent with visibility at 12.7 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southeast at a speed of 9 MPH. At the end of the day don’t miss the sunset at 10:46 PM.