If you planning to travel to Old Cathedral of St. Louis of France, 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 12:53 PM. The temperature feels like 36.6 with a humidity level of 63 so dress accordingly. Cloud coverage is 32 percent with visibility at 14.8 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling west-southwest at a speed of 4 MPH. At the end of the day don’t miss the sunset at 10:40 PM.