If you planning to travel to Cathedral of St John, Lafayette, Louisiana, 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 12:39 PM. The temperature feels like 52 with a humidity level of 62 so dress accordingly. Cloud coverage is 2 percent with visibility at 13.7 percent. Today’s UV index is 5, don’t forget the sunscreen if you need it! Today’s winds are traveling southwest at a speed of 5 MPH. At the end of the day don’t miss the sunset at 11:09 PM.