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 12:35 PM. The temperature feels like 76.65 with a humidity level of 86 so dress accordingly. Cloud coverage is 57 percent with visibility at 10 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southeast at a speed of 15 MPH. At the end of the day don’t miss the sunset at 11:10 PM.